There is something deeply comforting about a dish of scalloped potatoes fresh from the oven, bubbling with creamy sauce and golden on top. This classic side dish has graced dinner tables for generations, and for good reason — it combines simple, humble ingredients into something that feels genuinely luxurious. Whether you are serving it alongside a holiday roast, a weeknight chicken dinner, or simply enjoying it as a meal on its own, scalloped potatoes never fail to impress.
What sets a truly great scalloped potato recipe apart from a mediocre one comes down to a few key details: the thickness of your potato slices, the richness of your cream sauce, and the patience to let everything cook low and slow until perfectly tender. Many people confuse scalloped potatoes with au gratin potatoes, and while they are close cousins, traditional scalloped potatoes are made with a seasoned cream sauce rather than a cheese-heavy topping — though we do sneak a little cheese in here because life is short and cheese is wonderful.
This recipe has been carefully tested and refined to give you the most reliable, most delicious result every single time. The layers of thinly sliced potatoes soak up a velvety béchamel-style sauce infused with garlic and fresh thyme, creating a dish that is creamy throughout with edges that crisp up beautifully in the oven. Read through all the tips and tricks below before you begin, and you will feel completely confident heading into the kitchen with this one.
Classic Scalloped Potatoes Recipe
✨ Recipe Card
Crowd-Pleasing Creamy Scalloped Potatoes
Silky layers of tender Yukon Gold potatoes smothered in a velvety Gruyère béchamel, baked until the edges caramelize into a bubbling, golden-crusted masterpiece that fills the kitchen with an irresistible savory aroma.
⏱ Prep
20 mins
🍳 Cook
75 mins
⏰ Total
95 mins
🍽 Serves
8 servings
🥘 Ingredients
📋 Instructions
- 1. Preheat oven to 375°F (190°C) and butter a 9×13-inch baking dish or a 12-inch cast-iron skillet generously.
- 2. Melt butter in a heavy saucepan over medium heat, then sauté diced onion for 5 minutes until softened and translucent.
- 3. Add minced garlic and cook for 60 seconds until fragrant, stirring constantly to prevent browning.
- 4. Whisk in flour and cook for 90 seconds, stirring continuously, to form a pale golden roux.
- 5. Gradually pour in the warmed milk and cream in a slow, steady stream, whisking vigorously to eliminate all lumps.
- 6. Season the béchamel with salt, pepper, and nutmeg, then simmer over medium-low heat for 5–7 minutes, stirring often, until thickened enough to coat a spoon.
- 7. Remove from heat and stir in 1 cup of Gruyère and 3/4 cup of white cheddar until fully melted and glossy.
- 8. Arrange half the potato slices in overlapping layers across the bottom of the prepared dish, then pour over half the cheese sauce.
- 9. Layer the remaining potato slices on top, pour over the remaining sauce, and scatter the reserved Gruyère and cheddar evenly across the surface.
- 10. Sprinkle fresh thyme leaves over the cheese and cover the dish tightly with aluminum foil.
- 11. Bake covered for 45 minutes, then remove foil and bake an additional 25–30 minutes until the top is deeply golden, edges are caramelized, and potatoes are completely fork-tender.
- 12. Rest the dish for 10 minutes before serving, then garnish with fresh parsley and serve alongside your favorite main.
💡 Tips & Notes
- • Slice potatoes with a mandoline set to 1/8-inch for perfectly even layers that cook at the same rate — uneven slices lead to mushy and undercooked spots simultaneously.
- • Always grate cheese from a block rather than using pre-shredded bags — anti-caking agents in bagged cheese prevent smooth melting and result in a grainy sauce.
- • Warm your milk and cream before adding to the roux to dramatically reduce the risk of a lumpy béchamel.
- • For make-ahead convenience, assemble the entire dish up to 24 hours in advance, refrigerate covered, and add 15 extra minutes to the covered baking time.
- • Leftovers reheat beautifully in a 350°F oven covered with foil for 20 minutes — avoid microwaving as it can break the creamy sauce texture.
KitchenGuide101.com
Choosing the Right Potatoes
Not all potatoes are created equal when it comes to scalloped potatoes, and choosing the right variety will make a significant difference in the final texture of your dish. You want a potato that holds its shape reasonably well during the long baking time but still becomes fork-tender and absorbs the cream sauce beautifully. Russet potatoes are a popular choice because of their starchy nature, which actually helps thicken the sauce as the dish bakes. However, Yukon Gold potatoes are arguably the superior option here — they have a naturally buttery flavor, a slightly waxy texture that keeps slices intact, and they soak up cream like a dream.
Avoid red potatoes for this recipe. While they are great for salads and roasting, their waxy texture means they do not meld into the sauce as well and can result in a somewhat rubbery bite. If you want the absolute best of both worlds, you can actually mix Russet and Yukon Gold potatoes together. The Russets contribute starch that thickens the sauce while the Yukon Golds add that beautiful buttery flavor. Whichever variety you choose, make sure your slices are uniform in thickness — about one-eighth of an inch — which is easiest achieved using a mandoline slicer rather than a knife.
Making the Perfect Cream Sauce
The cream sauce is the soul of this dish, and taking a few extra minutes to make it properly will reward you enormously. You are essentially making a classic béchamel — a simple white sauce built from butter, flour, and milk or cream — but we are elevating it with a few additions. Start by melting butter in a saucepan over medium heat, then whisk in flour to form a smooth roux. Cook the roux for about two minutes, stirring constantly, to cook out the raw flour taste. This step is crucial and one that many home cooks skip, which results in a sauce with a faintly pasty flavor.
Once your roux is ready, slowly pour in a combination of whole milk and heavy cream while whisking continuously. The ratio we recommend is two cups of whole milk to one cup of heavy cream, which gives you a sauce that is rich but not overwhelmingly heavy. Season generously with salt, white pepper, a pinch of nutmeg, and a small amount of dried mustard powder — these seasonings might sound unexpected but they deepen the flavor of the sauce enormously without announcing themselves individually. Add freshly minced garlic and fresh thyme leaves, then simmer the sauce until it has thickened enough to coat the back of a spoon. Taste and adjust seasoning before you begin layering.
Tips for Layering and Baking
The way you layer your scalloped potatoes matters more than you might think. Begin by thoroughly buttering your baking dish — a 9×13 inch dish works perfectly for this recipe and serves eight to ten people as a side. Pour a thin layer of your cream sauce on the bottom of the dish before adding any potatoes. This prevents the bottom layer from sticking and ensures that every single slice gets coated with that gorgeous sauce. Arrange your first layer of potato slices in slightly overlapping rows, like shingles on a roof. Pour over a generous ladleful of sauce, then repeat the process until you have used all your potatoes and sauce, finishing with sauce on top.
Cover the dish tightly with aluminum foil for the first portion of baking. This traps steam inside, which helps cook the potatoes through before the top has a chance to brown too quickly. Bake covered at 375 degrees Fahrenheit for about 45 minutes, then remove the foil and continue baking for another 25 to 30 minutes until the top is deeply golden and bubbling around the edges. You will know the dish is done when a sharp knife or skewer slides through the layers with absolutely no resistance. Let the dish rest for at least 15 minutes before serving — this allows the sauce to settle and makes for much cleaner, more beautiful portions.
Variations and Add-Ins
One of the wonderful things about this recipe is how easily it adapts to different tastes and occasions. For a heartier version, layer in thinly sliced ham between the potato layers — the saltiness of the ham complements the cream sauce perfectly and turns this side dish into a complete one-pot meal. Caramelized onions are another fantastic addition that bring a subtle sweetness and depth to every bite. Simply cook sliced onions low and slow in butter until golden and jammy before incorporating them into your layers.
If you want to lean into the au gratin direction, sprinkle shredded Gruyère or sharp cheddar between layers and on top of the dish before the foil comes off. The cheese melts into the sauce and creates irresistible golden, crispy pockets throughout. Fresh herbs like rosemary, chives, or sage can also be swapped in for the thyme depending on what you have on hand or what you are serving alongside the dish. For a lighter version, you can substitute half the cream with chicken or vegetable broth, which will result in a slightly thinner sauce but still an incredibly flavorful dish. Resources like KitchenGuide101.com offer excellent guides on sauce consistency and potato preparation if you want to dive even deeper into the technique.
Storing, Reheating, and Making Ahead
Scalloped potatoes are one of those magical dishes that actually improve after a day in the refrigerator. As the dish cools, the sauce firms up and the flavors continue to meld together, meaning your leftovers are often even better than the original serving. Store leftovers tightly covered in the refrigerator for up to four days. To reheat, cover the dish with foil and warm it in a 350 degree oven for about 20 to 25 minutes until heated through. You can also reheat individual portions in the microwave, though the oven method gives you a far superior result.
If you want to make this dish ahead for a holiday or dinner party, you have two good options. You can assemble the entire dish up to 24 hours in advance, keep it covered in the refrigerator, and then bake it straight from cold — just add about 15 extra minutes to the covered baking time. Alternatively, you can bake it fully, let it cool completely, refrigerate it, and then reheat it covered the next day. Both methods work beautifully and allow you to spend less time in the kitchen on the day of your gathering, which is always a good thing when you have guests to entertain.
Serving Suggestions
- Serve alongside a classic roast chicken with pan drippings and green beans for a Sunday dinner everyone will request again
- Pair with glazed ham at Easter or Christmas for a traditional holiday spread
- Offer as a side to grilled steak with a simple arugula salad for a restaurant-quality dinner at home
- Serve with roasted salmon and asparagus for an elegant yet simple weeknight meal
- Pair with braised short ribs or pot roast for the ultimate cold-weather comfort food combination
- Enjoy leftovers topped with a fried egg for a deeply satisfying weekend brunch
Scalloped potatoes are one of those timeless recipes that belong in every home cook’s repertoire, and once you have made this version, you will understand exactly why they have endured for so long. The combination of silky cream sauce, perfectly tender potato layers, and that irresistible golden crust is simply hard to improve upon. Whether you follow the recipe exactly as written or take it in one of the many delicious directions suggested above, you are going to end up with something that makes people reach for seconds before they have even finished their first helping. Print this one out, tuck it into your recipe box, and consider it your go-to scalloped potatoes recipe from this day forward.
