Gluten Free Scalloped Potatoes make a creamy, comforting side dish with tender Yukon Gold slices, Gruyère cheese, and a seasoned milk-and-cream sauce, all baked until bubbling and beautifully browned.
This is the kind of side dish worth making when you want something comforting but dependable enough for a holiday dinner, Sunday meal, or gathering. The thinly sliced potatoes turn tender and creamy without losing their shape, while the Gruyère creates a savory, golden finish.
What makes this method especially reliable is that the potatoes get a brief head start in the seasoned cream mixture before they ever reach the oven. That short simmer begins softening the slices and distributes the thyme, garlic salt, and pepper throughout the dish rather than leaving all the flavor on the surface.
Once layered with freshly grated cheese and baked, the potatoes settle into rich, creamy layers that are easy to portion after resting. There is no flour-based sauce to prepare, which keeps the ingredient list straightforward while still giving you that classic scalloped-potato texture.
Gluten Free Scalloped Potatoes Ingredients
You only need a short list of familiar ingredients for this creamy potato side dish. Since the recipe is simple, consistent potato slicing and good melting cheese make a noticeable difference.
Yukon Gold potatoes: Their naturally buttery flavor and creamy texture work especially well here. Slice them evenly to about 1/8 inch thick so all the layers become tender at roughly the same time.
Whole milk: Provides the lighter portion of the creamy cooking liquid while helping the potatoes cook gently before and during baking.
Heavy whipping cream: Adds richness and gives the finished sauce its smooth, full-bodied consistency.
Gruyère cheese: Freshly shredded Gruyère melts between the potato layers and forms the deeply savory golden topping.
Garlic salt: Seasons both the potatoes and cream mixture while adding a mild garlic flavor throughout the casserole.
Dried thyme: Adds an earthy, aromatic note that complements the potatoes and Gruyère without overpowering them.
Ground black pepper: Balances the richness of the milk, cream, and cheese with a gentle peppery finish.
Nonstick cooking spray: Helps prevent sticking in the baking dish and keeps the cheese from adhering to the foil during the covered portion of baking.
Step-by-Step Gluten Free Scalloped Potatoes
STEP 1: Heat your oven to 375°F (190°C). Lightly coat a 9 × 13-inch baking dish with nonstick cooking spray so the creamy potatoes release more easily after baking.
STEP 2: Combine the whole milk and heavy cream in a large pot or Dutch oven. Stir in the garlic salt, dried thyme, and black pepper, making sure the seasonings are evenly dispersed through the liquid.
STEP 3: Peel the Yukon Gold potatoes and slice them approximately 1/8 inch thick. A mandoline can make this faster and more consistent, but a sharp knife also works. Transfer the slices to the cream mixture as you work to limit discoloration.
STEP 4: Place the pot over high heat and bring the potatoes and cream mixture to a gentle simmer. Stir frequently and carefully, particularly along the bottom of the pot. Once the liquid begins simmering, cook for about 1 minute, then remove the pot from the heat.
STEP 5: Let the potatoes cool in the cream mixture for about 10 minutes. This short cooling period makes the slices easier to handle while allowing the seasoned liquid to begin coating and settling around them.
STEP 6: Transfer roughly one-third of the potato slices to the prepared baking dish with a slotted spoon. Spread them into an even layer and sprinkle with one-third of the Gruyère. Repeat with another layer of potatoes and cheese, then arrange the remaining potatoes over the top.
STEP 7: Pour the remaining milk-and-cream mixture evenly over the layered potatoes. Finish with the rest of the freshly shredded Gruyère. Coat the underside of a piece of foil with cooking spray and cover the dish.
STEP 8: Bake covered for 40 minutes. Remove the foil and continue baking for another 20–30 minutes, until the potatoes are completely tender when pierced with a knife and the cheese is golden. Broil for 1–2 minutes if you want deeper browning, then rest the dish for 20–30 minutes before serving.
How to Store & Reheat
Allow leftovers to cool before transferring them to a tightly covered container or covering the baking dish securely. Refrigerated scalloped potatoes are best used within about 3–4 days.
The potatoes can also be frozen, although dairy-rich sauces may separate slightly after thawing. For the best texture, cool the dish completely, portion it into freezer-safe containers, and freeze for up to about 2 months.
Thaw frozen portions overnight in the refrigerator before reheating. For larger portions, cover them and warm them in a 350°F oven until heated through. Removing the cover for the final few minutes can help restore some of the browned surface.
Individual servings can also be reheated in the microwave. Use shorter intervals and moderate power when possible so the creamy sauce warms gradually rather than becoming oily.
Why do you simmer the potatoes before baking?
Briefly simmering the sliced potatoes gives them a head start before they enter the oven. It also lets the seasoned milk and cream reach more of the potato surfaces, helping the layers cook evenly and develop consistent flavor throughout the casserole.
How do I know when scalloped potatoes are fully cooked?
Insert a thin knife into the center of the baking dish and through several layers. It should slide through the potatoes with very little resistance. If the center still feels firm, continue baking uncovered and check again after another 5–10 minutes.
Can I assemble these scalloped potatoes ahead of time?
You can prepare the dish in advance, but keep in mind that partially cooked potatoes continue absorbing liquid as they sit. For the most predictable creamy texture, baking shortly after assembly is preferable. Fully baked leftovers generally reheat very well for make-ahead meals.
Why should scalloped potatoes rest before serving?
The cream mixture is quite fluid when the casserole first leaves the oven. Resting for 20–30 minutes gives the hot sauce time to settle and thicken around the potato slices, making the finished dish creamier and much easier to cut into tidy portions.
Can I use pre-shredded Gruyère?
Freshly grated cheese is the better choice. Packaged shredded cheeses can contain anti-caking ingredients that interfere with smooth melting. Grating the Gruyère yourself helps it melt more evenly into the potato layers and creates a smoother browned topping.
Serving Ideas for Gluten Free Scalloped Potatoes
These rich potatoes work particularly well alongside simply seasoned main dishes because the creamy Gruyère sauce already brings plenty of flavor.
Roasted chicken: A simply roasted or herb-seasoned chicken provides a savory main course without competing with the creamy potatoes.
Pork tenderloin: Roasted or seared pork pairs naturally with the thyme, garlic, and nutty Gruyère flavors in the casserole.
Roasted vegetables: Green beans, asparagus, Brussels sprouts, or other roasted vegetables provide freshness and contrast alongside the rich potato layers.
Helpful Tips
- Keep the slices uniform. Aim for approximately 1/8-inch slices throughout. Thick and thin slices mixed together can leave some potatoes overly soft while others remain firm.
- Grate the cheese just before using it. Fresh Gruyère melts smoothly between the warm potato layers and gives you a more even topping.
- Do not skip the resting time. The casserole may look very loose immediately after baking. Giving it 20–30 minutes to settle makes a substantial difference in both texture and serving.
These scalloped potatoes are especially useful when you need a generous side dish that can feed a table without requiring complicated preparation. Most of the flavor comes from letting the potatoes cook directly in the seasoned dairy mixture, so there is no separate roux or thickened sauce to manage.
The finished casserole should have tender, distinct potato layers surrounded by creamy sauce rather than potatoes swimming in liquid. The top becomes golden and savory from the Gruyère, while the thyme and garlic seasoning keep the richness balanced.
For the cleanest portions, give the dish its full resting time before cutting into it. Once everything has settled, you will have creamy, tender potatoes with plenty of melted cheese in every layer and a browned top that makes the dish especially inviting for family dinners, gatherings, and holiday meals.
Gluten Free Scalloped Potatoes
Ingredients
- 4 lb Yukon Gold potatoes peeled and evenly sliced to 1/8-inch thickness
- 1 tsp dried thyme
- 8 oz Gruyère cheese freshly grated for smooth melting
- 2 cups heavy whipping cream
- 1/2 tsp ground black pepper
- 2 cups whole milk
- 1 tbsp garlic salt
- Nonstick cooking spray for preparing the baking dish and foil
Instructions
- Heat the oven to 375°F (190°C). Coat a 9 × 13-inch baking dish with nonstick cooking spray and set it aside.
- Pour the whole milk and heavy whipping cream into a large pot or Dutch oven. Add the garlic salt, dried thyme, and black pepper. Stir thoroughly so the seasonings are distributed throughout the liquid.
- Peel the Yukon Gold potatoes and cut them into uniform 1/8-inch slices. As each portion is sliced, place the potatoes directly into the prepared cream mixture to help prevent discoloration. Keep the slices as submerged in the liquid as possible.
- Set the pot over high heat and bring the cream mixture to a simmer, stirring frequently so the potatoes heat evenly and do not adhere to the bottom of the pot. Once simmering begins, continue cooking for 1 minute.
- Remove the pot from the heat and allow the potato-and-cream mixture to cool for 10 minutes.
- Using a slotted spoon, arrange one-third of the simmered potato slices in an even layer across the prepared baking dish. Scatter one-third of the shredded Gruyère over the potatoes.
- Add a second layer using another one-third of the potatoes, followed by another one-third of the Gruyère.
- Finish with the remaining potato slices. Pour the cream mixture left in the pot evenly over the assembled potatoes, then distribute the remaining Gruyère across the surface.
- Spray a sheet of foil with nonstick cooking spray and use it to cover the baking dish. Bake for 40 minutes.
- Carefully remove the foil and return the dish to the oven for another 20–30 minutes, or until a knife slides easily through the potato slices.
- For a more deeply browned surface, broil the scalloped potatoes for 1–2 minutes, if desired.
- Allow the finished dish to rest for 20–30 minutes before serving. This resting period helps the creamy layers settle and makes the potatoes easier to portion into neat servings.