Welcome to the ultimate guide for crafting the best Potatoes Au Gratin with Ham – a dish that effortlessly marries tender, thinly sliced potatoes with savory, perfectly cooked ham, all enveloped in a rich, garlic-infused creamy sauce. Crowned with a generous layer of freshly grated white cheddar and Parmigiano Reggiano, this casserole bakes to a golden, bubbly perfection, promising a decadent experience that’s ideal for any special occasion, from festive holidays to elegant dinner parties. Prepare to impress your guests and delight your family with this timeless classic.
While classic potato dishes like Yukon Gold Mashed Potatoes hold a special place at the table, au gratin potatoes elevate the humble spud to a new level of culinary artistry. This particular recipe, enhanced with succulent ham, offers a comforting yet sophisticated twist that makes it an unrivaled choice for celebratory feasts such as Easter brunch, Thanksgiving dinner, or Christmas supper. It’s a dish that evokes warmth, togetherness, and pure indulgence.
If you’re a connoisseur of cheesy potato casseroles, you’ll be thrilled to explore other favorites like Air Fryer Scalloped Potatoes for a quick and easy cheesy fix, the beloved Crockpot Funeral Potatoes for a comforting classic, or our Cheesy Hashbrown Casserole without Canned Soup for a fresh take on a breakfast staple. Each offers its own unique charm, but our Potatoes Au Gratin with Ham stands out for its elegant simplicity and profound flavor.
Table of Contents
- Why You’ll Love This Recipe
- Ingredients & Substitutions
- How to Make Potatoes Au Gratin with Ham
- Recipe Serving Suggestions
- Expert Tips for Perfection
- Additions & Variations
- Recipe FAQs
- More Delicious Side Dish Recipes
- Full Au Gratin Potatoes with Ham Recipe
Why You’ll Love This Recipe
This Potatoes Au Gratin with Ham recipe isn’t just another side dish; it’s a culinary experience designed for ease, flavor, and sheer enjoyment. Here’s why it’s destined to become a staple in your recipe collection:
- No Heavy Cream, Lighter Yet Luxurious: Unlike many traditional au gratin recipes that call for heavy cream, this version intelligently uses half and half. This substitution delivers a wonderfully creamy and rich texture without making the dish overly heavy or greasy. It’s a smart choice for those seeking indulgence with a slightly lighter feel, allowing the other flavors to truly shine.
- Effortless Creaminess – No Cheese Sauce or Flour Needed: Forget the fuss of preparing a traditional cheese bechamel sauce from scratch. This recipe simplifies the process dramatically, achieving its luscious creaminess without any flour-based roux. The warmth of the half and half, combined with the starches from the potatoes, naturally thickens the sauce as it bakes, making preparation quicker and easier while maintaining exceptional flavor and texture.
- Ham for Unmatched Savory Depth: The inclusion of high-quality, pan-fried ham transforms this side dish into a more substantial and incredibly flavorful offering. The ham’s savory notes and delightful crispy texture provide a perfect counterpoint to the creamy potatoes and sharp cheese, creating a harmonious balance of tastes and textures that elevates the entire dish. It’s a fantastic way to utilize leftover holiday ham, adding a delicious second life to your festive meals.
- White Cheddar for a Distinctive Tang: While Gruyère is a classic choice for au gratin, this recipe opts for freshly grated white cheddar. White cheddar brings a sharp, tangy flavor that cuts through the richness of the cream and potatoes, adding a vibrant dimension to the dish. It melts beautifully, creating a golden, bubbly crust that’s both appealing and delicious. Plus, white cheddar is often more readily available and budget-friendly, making this gourmet-tasting dish accessible to all.
Ingredients & Substitutions
Creating the perfect Potatoes Au Gratin with Ham starts with understanding each ingredient and its role. Here’s a detailed look at what you’ll need and potential substitutions:
- Russet Potatoes: These are the star of the show. Russet potatoes are highly favored for their high starch content, which is crucial for achieving that desired creamy consistency in au gratin dishes. As they cook, their starches release and help to thicken the sauce, creating a luxurious mouthfeel. While russets are preferred, Yukon Gold potatoes can also work, offering a slightly waxier texture and buttery flavor. Avoid waxy potatoes like red bliss, as they won’t break down sufficiently to create creaminess.
- Ham: The quality of your ham makes a significant difference. Opt for a thick, high-quality ham, diced into small, even pieces. Frying the ham in butter before layering enhances its rich, savory flavor and adds a delightful crispy texture, which provides a wonderful contrast to the soft potatoes. This is an excellent opportunity to use up leftover spiral ham, transforming it into a new, exciting meal.
- Salted Butter: Butter serves a dual purpose here. It’s essential for frying the ham, imparting a rich, nutty flavor, and also generously coats the baking dish. This not only prevents sticking but also contributes to the overall flavor profile, ensuring every bite is rich and satisfying. If using unsalted butter, remember to adjust the overall salt content in the recipe.
- Half and Half: This blend of cream and milk is key to the recipe’s balanced richness. It provides a creamy, indulgent base without the excessive heaviness of full heavy cream. This allows the other flavors, particularly the garlic and cheese, to stand out more prominently. Whole milk can be used for a slightly lighter version, though it may result in a thinner sauce.
- Fresh Garlic: Fresh garlic is non-negotiable for this recipe. Minced or grated garlic infuses the cream mixture with an aromatic depth that is fundamental to classic au gratin. Garlic powder, while convenient, simply cannot replicate the vibrant, pungent flavor of fresh garlic.
- Onion Powder: This subtle addition provides a sweet, mellow onion flavor without introducing any unwanted texture. It complements the garlic and potatoes perfectly, creating a background note that enhances the overall savoriness of the dish.
- Dried Thyme: Thyme is a traditional herb that pairs beautifully with potatoes and cream, lending an earthy, slightly floral aroma and taste that is characteristic of authentic au gratin.
- Kosher Salt: All recipes are carefully tested with Morton kosher salt, which is praised for its coarse texture and clean flavor, making it ideal for everyday cooking. If you are using fine table salt, be sure to reduce the amount by about one-third, as it is saltier by volume. Investing in a good kosher salt is highly recommended for consistent and flavorful results.
- Fresh Cracked Black Pepper: A generous amount of freshly cracked black pepper adds a subtle warmth and a gentle bite, enhancing the savory notes without overpowering them. It’s a simple addition that makes a noticeable difference.
- Sharp White Cheddar: For superior melting and a richer, more pronounced flavor, always opt for freshly grated sharp white cheddar over pre-shredded varieties. Pre-grated cheeses often contain anti-caking agents that can hinder smooth melting. The sharpness of white cheddar truly shines through the creamy layers, providing a delicious tang. Gruyère or a sharp yellow cheddar are also excellent alternatives.
- Parmigiano Reggiano: Grate fresh Parmigiano Reggiano just before use for the best results. Its intensely nutty, salty, and umami-rich flavor adds a layer of sophistication and depth that is unparalleled by pre-grated parmesan. It contributes to the beautiful golden crust and rounds out the cheese blend perfectly.
A complete list of ingredients and precise amounts can be found on the recipe card below.
How to Make Potatoes Au Gratin with Ham
Crafting this delightful Potatoes Au Gratin with Ham is a straightforward process when broken down into manageable steps. Follow these instructions for a perfect, creamy, and cheesy casserole every time.
Quick Overview
- Slice potatoes with precision.
- Fry ham until golden and crisp.
- Prepare a warm, aromatic cream mixture.
- Skillfully assemble layers in a baking dish.
- Bake to golden, bubbly perfection.
Step by Step Instructions
Each step is crucial for achieving the perfect texture and flavor. Pay attention to detail, and you’ll be rewarded with an outstanding dish.
Quick Tip for Perfect Slicing
Achieving uniformly thin potato slices is paramount for even cooking. If your slices are too thick or inconsistent, some potatoes may remain undercooked while others become mushy, compromising the dish’s overall texture. A mandoline slicer set to 1/16th inch is highly recommended for this precision.
- Preheat the Oven & Prepare Potatoes: Begin by preheating your oven to 375°F (190°C). As the oven heats, peel your russet potatoes. The key to successful au gratin is consistent potato thickness. Use a mandoline slicer to achieve uniform slices, precisely 1/16th inch thick. This ensures that all potatoes cook evenly and become tender simultaneously. Set the perfectly sliced potatoes aside.
- Fry the Ham to Crispy Perfection: In a large, sturdy skillet, melt the salted butter over medium heat. Once the butter is shimmering, add the diced ham. Cook, stirring occasionally, for about 5-7 minutes, until the ham pieces are beautifully golden brown and slightly crispy. This step extracts maximum flavor from the ham and provides a delightful textural contrast. Remove the ham from the skillet and set it aside, reserving the flavorful butter in the pan for assembling the casserole.
- Prepare the Aromatic Cream Mixture: While the ham is cooking, whisk together the half and half, minced garlic, onion powder, dried thyme, kosher salt, and fresh cracked black pepper in a microwave-safe bowl or a liquid measuring cup. Warm this mixture in the microwave in 30-second intervals until it is warm to the touch, but do not allow it to boil. Warming the cream mixture ensures that the potatoes begin cooking immediately upon assembly, promoting even tenderness and preventing a watery consistency.
Baking Tip for Tenderness
To ensure your potatoes become perfectly tender throughout, cover the baking dish tightly with aluminum foil during the initial baking phase. This creates a steaming environment, allowing the potatoes to cook gently and thoroughly before the cheese topping is browned.
- Assemble the Casserole Layers: Take a 2-quart casserole dish and generously brush the bottom and sides with the flavorful butter reserved from frying the ham. Arrange approximately one-third of your thinly sliced potatoes in an even layer at the bottom of the dish, slightly overlapping them if necessary.
- Add the First Cream Layer: Pour about one-third of the warm cream mixture over the potato layer. Ensure the minced garlic is distributed evenly over the potatoes, as it’s packed with flavor.
- Sprinkle with Ham: Evenly scatter one-third of the crispy fried ham over the cream-drenched potatoes.
- Introduce the Cheese: Top this layer with one-third of the freshly shredded sharp white cheddar cheese. This cheese will melt down, creating a delicious, gooey layer.
- Repeat the Layering Process: Continue this layering process: potatoes, cream mixture, fried ham, and white cheddar. You should create three distinct layers in total. For the final layer, add the potatoes, cream, and ham, but reserve the remaining white cheddar and all of the Parmigiano Reggiano for the very end of the baking process.
- Bake to Golden Perfection: Cover the assembled baking dish tightly with aluminum foil. Bake in the preheated oven for 60-70 minutes. The potatoes should be tender when gently pierced with a butter knife through the foil. Keep in mind they will continue to cook a bit after the foil is removed. Once tender, remove the foil, sprinkle the remaining white cheddar and all of the Parmigiano Reggiano evenly over the top, and bake uncovered for an additional 20-25 minutes, or until the top is golden brown and bubbly. For an extra crispy, browned crust, you can briefly broil the casserole for 1-2 minutes at the end, watching it carefully to prevent burning. Let the dish rest for at least 10 minutes before serving. This crucial resting period allows the layers to set and the sauce to thicken further, making it easier to serve clean, beautiful portions.
Recipe Serving Suggestions
Potatoes Au Gratin with Ham is a versatile and hearty side dish that complements a wide array of main courses. Its rich, creamy profile and savory ham make it a perfect partner for roasted meats and poultry, especially during holiday gatherings or special dinners. Here are some fantastic pairings to inspire your menu:
- Oven Baked Spiral Ham: Pair this au gratin with another ham! A glazed, spiral-sliced ham offers a sweet and savory contrast that is simply irresistible, creating a truly festive and complete meal.
- Crispy Baked Chicken Legs: The juicy, flavorful chicken legs, tossed in a delicious spice rub, provide a robust main course that stands up beautifully to the richness of the au gratin.
- Dutch Oven Chicken Breast: Succulent chicken breasts slathered in herb butter and cooked to perfection in a Dutch oven offer a tender, aromatic main dish that pairs wonderfully with the creamy potatoes.
- Cast Iron Chicken Breasts: Perfectly seared chicken breasts with a crispy skin and juicy interior provide a quick yet elegant protein option that balances the richness of the au gratin.
- Dutch Oven Turkey Breast: A tender, roasted turkey breast, perhaps with root vegetables, makes for a classic holiday pairing, allowing the au gratin to shine as a comforting, flavorful side.
- Oven Baked Brisket: For a heartier meal, a slow-roasted beef brisket (no smoker needed!) with its deep, smoky flavors is an exceptional match for the creamy, cheesy potatoes, creating a truly satisfying spread.
- Roasted Pork Loin: The lean and tender qualities of a roasted pork loin would be beautifully complemented by the rich, cheesy potato casserole, especially if the pork is seasoned with herbs.
- Pan-Seared Salmon: For a lighter, yet still elegant option, pan-seared salmon provides a flaky, buttery texture and rich flavor that surprisingly pairs well with the creamy gratin, creating a balanced meal.
Expert Tips for Perfection
Mastering Potatoes Au Gratin with Ham involves a few key techniques. These expert tips will help you achieve consistently delicious results, making this dish a showstopper every time.
- Utilize a Mandoline for Consistent Slicing: The secret to evenly cooked, tender potatoes in your gratin lies in uniform slicing. A mandoline slicer, set to a precise 1/16th inch thickness, ensures each potato slice is identical. This consistency is vital for allowing all potatoes to cook through at the same rate, preventing some from being undercooked while others turn to mush. Investing in a mandoline is a game-changer for this recipe.
- Fry Ham Until Crispy and Golden: Don’t skip or rush the step of frying the diced ham. Cooking it until it’s golden and slightly crispy in butter brings out its full savory flavor and adds a fantastic textural element to the soft, creamy potatoes. This crispy ham layer provides a delightful counterpoint that elevates the entire dish.
- Warm the Cream Mixture Gently: Heating the half and half mixture until it’s warm (but not boiling) before adding it to the casserole is crucial. This step ensures that the casserole starts cooking more uniformly and helps the potatoes begin to soften immediately. A warm liquid also helps the starches activate properly, contributing to a perfectly creamy, thick sauce without lumps.
- Layer with Care and Precision: Thoughtful layering is essential for a well-balanced gratin. Alternate layers of potatoes, warm cream mixture (ensuring garlic is spread evenly), crispy ham, and cheese. Remember to reserve a portion of the white cheddar and all of the Parmigiano Reggiano for the final, uncovered bake. This strategy ensures even distribution of flavors and prevents dry spots, while the final cheese application creates that irresistible golden, bubbly crust.
- Cover with Foil for Initial Baking: The initial baking period with the dish tightly covered in foil is a critical step. The foil traps steam, creating a moist environment that allows the thin potato slices to steam and become exceptionally tender without drying out or burning the top. This gentle cooking process ensures a perfectly soft potato interior.
- Allow to Rest Before Serving: Patience is a virtue, especially with casseroles. Allowing the gratin to rest for 10-15 minutes after it comes out of the oven is not just a suggestion – it’s a requirement for the best results. During this time, the hot sauce will continue to thicken, and the layers will set, making it much easier to scoop out neat, beautiful portions without them collapsing.
- Make Ahead for Convenience: This gratin is perfect for meal prep or entertaining. You can assemble the entire dish up to 24 hours in advance. Simply follow the recipe through step 7 (assembling layers), but do not heat the half and half mixture. Cover the dish tightly with plastic wrap or foil and refrigerate overnight. When ready to bake, remove it from the refrigerator while your oven preheats. You may need to extend the initial covered baking time by an additional 10-20 minutes to ensure the casserole is thoroughly heated through before uncovering and browning.
- Adjust Seasoning to Taste: Always taste your cream mixture before layering. Salt and pepper are foundational, but feel free to adjust to your preference. Remember that the ham and cheeses will add considerable saltiness, so be mindful when seasoning the cream.
Additions & Variations
While this Potatoes Au Gratin with Ham recipe is perfect as is, it also serves as an excellent canvas for creativity. Feel free to customize it with these delightful additions and variations to suit your taste or what you have on hand.
- Try Bacon for a Smoky Twist: If you’re a bacon lover, substitute cooked and crumbled bacon for the ham. The smoky, salty, and crispy texture of bacon will add an entirely different, yet equally delicious, dimension to the gratin. Fry it until extra crispy and crumble it over the layers for maximum impact.
- Spice It Up with a Kick: For those who enjoy a touch of heat, a pinch of cayenne pepper or a dash of your favorite hot sauce stirred into the cream mixture will add a delightful warmth. Start with a small amount and adjust to your preferred level of spiciness. A touch of smoked paprika can also add a subtle, complex heat.
- Herb Variations for Freshness: While dried thyme is traditional, fresh herbs can truly elevate the dish. Experiment by mixing in finely chopped fresh rosemary, flat-leaf parsley, or chives into the cream mixture or sprinkled between layers. Fresh sage also pairs wonderfully with ham and potatoes, offering an earthy, aromatic note.
- Add Vegetables for Extra Nutrition: Enhance the dish with thinly sliced or finely diced vegetables. Sautéed mushrooms, caramelized onions, or even blanched spinach can be layered in with the potatoes and ham for added flavor, color, and nutrients. Ensure vegetables are cooked slightly beforehand to prevent excess moisture.
- Cheese Blend Adventures: Don’t limit yourself to just white cheddar and Parmigiano Reggiano. A blend of cheeses can create complex flavors. Consider adding some Gruyère for nuttiness, Fontina for extra meltiness, or even a touch of smoked gouda for a deeper, more robust profile. Always grate cheese fresh for the best results.
- Garlic Lover’s Dream: If you’re truly passionate about garlic, consider roasting a whole head of garlic until soft, then mashing it and incorporating it into the cream mixture. This yields a sweeter, milder, and profoundly aromatic garlic flavor.
Recipe FAQs
A watery au gratin or scalloped potato dish is a common issue, often due to a few factors. It could be that too much liquid (cream or milk) was added relative to the potatoes, or the casserole didn’t bake long enough for the liquid to reduce and thicken. Another reason could be using waxy potatoes, which don’t release enough starch to naturally thicken the sauce. To remedy this, try baking the dish uncovered for a little longer to allow excess moisture to evaporate. If it’s still watery after resting, you can gently spoon off some of the extra liquid before serving. For future preparations, ensure your potato slices are consistently thin to encourage proper starch release, and don’t add too much liquid initially.
While often used interchangeably, there’s a distinct difference between scalloped potatoes and au gratin potatoes. Traditionally, scalloped potatoes feature thinly sliced potatoes baked in a creamy, often flour-thickened sauce, without cheese. They may sometimes be topped with breadcrumbs for texture. Au gratin potatoes, on the other hand, always include cheese, both mixed into the creamy sauce and generously sprinkled on top to form a golden, bubbly crust. The term “au gratin” itself refers to a dish that is topped with breadcrumbs or grated cheese, or both, and then baked or broiled until a golden crust forms. Essentially, all au gratin potatoes are scalloped, but not all scalloped potatoes are au gratin!
Absolutely! This casserole is an excellent make-ahead option, perfect for holiday entertaining or busy weeknights. You can assemble the entire dish, including layering all ingredients (but withholding the final cheese sprinkle if you want a freshly grated top), cover it tightly, and refrigerate for up to 24 hours. When ready to bake, take it out of the fridge while your oven preheats. You may need to add an extra 10-20 minutes to the initial covered baking time to ensure it heats through completely before uncovering and baking to golden perfection.
Russet potatoes are generally considered the best choice for au gratin due to their high starch content. As they cook, the starches are released and help to naturally thicken the cream sauce, creating a rich and velvety texture. Yukon Gold potatoes are a good secondary option, offering a buttery flavor and still contributing to the creaminess, though to a lesser extent than russets. Avoid waxy potatoes like red potatoes or new potatoes, as they tend to hold their shape too well and won’t contribute to the desired creamy consistency.
Undercooked potatoes can be disappointing. The key factors to ensure tender potatoes are consistent, thin slicing (ideally 1/16th inch with a mandoline), warming the cream mixture before assembly, and baking for the recommended time while covered. The foil creates a steaming effect that helps the potatoes soften thoroughly. If after the initial covered baking time they are still firm when pierced with a knife, continue baking covered for another 10-15 minutes before removing the foil and browning.
More Delicious Side Dish Recipes
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Au Gratin Potatoes with Ham
Equipment
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Mandoline Slicer
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Oval Baking Dish Set
Ingredients
- 2.5 pounds russet potatoes, about 4 medium potatoes
- 6 ounces high-quality thick sliced ham, diced
- 2 Tablespoons salted butter
- 1 3/4 cup half and half
- 4-5 cloves garlic, minced finely or grated
- 2 teaspoons onion powder
- 1 teaspoon dried thyme
- 1 1/2 teaspoons Morton kosher salt*
- fresh cracked black pepper
- 10 ounces (2 1/2 cups) sharp white cheddar, shredded*
- 3/4 cup grated parmigiano reggiano
Instructions
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Preheat the oven & slice the potatoes: Preheat your oven to 375°F (190°C). Peel the russet potatoes and use a mandolin to slice them to a thickness of 1/16th inch, then set them aside.2.5 pounds russet potatoes, about 4 medium potatoes
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Fry the ham: In a large skillet, melt the butter over medium heat. Add the diced ham and cook, stirring occasionally, until the ham is golden and slightly crispy, about 5-7 minutes. Set the ham aside.2 Tablespoons salted butter, 6 ounces high-quality thick sliced ham, diced
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Prepare the cream mixture: While the ham cooks, whisk together the half and half, garlic, onion powder, thyme, salt, and pepper in a microwave-safe bowl or liquid measuring cup. Microwave in 30-second intervals until the mixture is warm. It does not need to reach boiling.1 3/4 cup half and half, 4-5 cloves garlic, minced finely or grated, 2 teaspoons onion powder, 1 teaspoon dried thyme, 1 1/2 teaspoons Morton kosher salt*, fresh cracked black pepper
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Assemble the casserole: Brush a 2-quart casserole dish generously with the butter used to fry the ham. Layer about 1/3 of the potatoes into the dish.
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Pour about 1/3 of the warm cream mixture over the potatoes, ensuring the garlic is evenly distributed across the top.
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Sprinkle 1/3 of the fried ham over the potatoes and cream.
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Top with 1/3 of the white cheddar.10 ounces (2 1/2 cups) sharp white cheddar, shredded*
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Repeat the layering: Repeat this layering process with the remaining ingredients, except do not top the final layer with the remaining white cheddar. There should be three layers in total.
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Bake and finish: Cover the baking dish tightly with foil and bake for 60-70 minutes, until the potatoes are just tender when pierced with a butter knife (they will continue to cook after the foil is removed). Remove the foil and bake uncovered for an additional 20-25 minutes. Broil at the end if desired. Let the dish rest for 10 minutes before serving.3/4 cup grated parmigiano reggiano
Notes
- Kosher Salt: All of my recipes are tested with Morton kosher salt unless noted otherwise. It is the best salt for everyday cooking because of its size and flavor. If using table salt, the amount should be reduced. I highly recommend picking up some kosher next time you are at the store!
- White Cheddar: Use freshly grated white cheddar instead of pre-grated cheese for better melting and a richer flavor. The sharpness of white cheddar stands out in this casserole better than more mild cheeses. Gruyere or sharp yellow cheddar cheese can also be used.
- Use a Mandolin for Consistent Slicing: For perfectly even and thin potato slices, use a mandolin set to 1/16th inch. Consistency in thickness ensures even cooking and a creamy texture.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.