Cheesy Garlic Scalloped Potatoes

A rich, bubbly, and deeply comforting cheesy garlic scalloped potatoes recipe featuring layers of tender Yukon Gold potatoes baked in a garlic-infused cream sauce with sharp white cheddar and Gruyère.

Why This Recipe Works:

• No rinsing preserves the natural potato starches to emulsify and thicken the cream sauce.
• Simmering the potatoes in cream first ensures even cooking and prevents the dairy from breaking in the oven.
• A blend of sharp white cheddar and Gruyère provides the perfect balance of meltability and deep, nutty flavor.

I still remember the Thanksgiving of 2018 when I pulled a baking dish of what was supposed to be scalloped potatoes out of the oven, only to find a curdled, watery swamp of grey spuds. My family politely ate around the edges, but the center was an absolute disaster.

I wanted to crawl under the rug.

The failure haunted me enough to drag me into a rabbit hole of potato science, where I tested everything from starchy Russets to waxy red potatoes. Most classic recipes tell you to rinse your sliced potatoes, but doing so washes away the precious amylose starch needed to naturally thicken the cream. When you rinse them, the dairy has nothing to cling to, causing the fat to separate under high heat and leave you with a greasy, broken sauce.

I also realized that cheap plastic mandolines are a total hazard. Slicing until my wrist throbbed on a dull blade yielded uneven discs that cooked unevenly.

The fix is incredibly simple: use Yukon Gold potatoes, slice them thin, and do not rinse them. We simmer them directly in a garlic-infused heavy cream bath before baking. This coaxes the starch out of the potato cells, creating a velvety emulsion that never curdles.

Cheesy Garlic Scalloped Potatoes

• Publisher Storied Skillet
• Cuisine American
• Category Side Dish, Casserole
• Prep Time 25 minutes
• Cook Time 1 hour 10 minutes
• Servings 8
• Calories 380 calories
• Rating 4.8 1645
• Tags cheesy potatoes, scalloped potatoes, garlic potatoes, holiday side dish

Ingredients

• 3 lbs Yukon Gold potatoes, scrubbed and sliced 1/8-inch thick (do not peel or rinse)
• 2 cups heavy whipping cream
• 1 cup whole milk
• 4 cloves garlic, finely minced
• 1 tbsp unsalted butter (for greasing the dish)
• 1.5 tsp Diamond Crystal kosher salt
• 1/2 tsp freshly cracked black pepper
• 1/4 tsp freshly grated nutmeg
• 1.5 cups sharp white cheddar cheese, shredded (divided)
• 1 cup Gruyère cheese, shredded (divided)
• 2 tsp fresh thyme leaves

Directions

1. Preheat your oven to 375°F (190°C). Rub the inside of a 9x13-inch ceramic baking dish with the unsalted butter, making sure to coat the corners thoroughly.
2. In a large, wide saucepan, combine the heavy cream, whole milk, minced garlic, Diamond Crystal kosher salt, black pepper, and grated nutmeg. Bring the mixture to a bare simmer over medium-low heat.
3. Carefully add the sliced potatoes to the simmering cream. Let them cook gently for about 8 to 10 minutes, stirring occasionally with a rubber spatula to prevent sticking, until the potatoes are slightly softened but still hold their shape.
4. Remove the pan from the heat. Use a slotted spoon to transfer half of the potatoes into the prepared baking dish, spreading them into an even layer.
5. Sprinkle half of the shredded white cheddar and half of the Gruyère over the first layer of potatoes.
6. Arrange the remaining potatoes on top in an even layer. Pour the remaining warm cream sauce from the saucepan over the potatoes, then top with the rest of the cheddar and Gruyère.
7. Cover the baking dish tightly with aluminum foil. Bake for 45 minutes, then carefully remove the foil and bake for an additional 20 to 25 minutes until the top is deeply golden brown, bubbly, and the potatoes are tender when pierced with a knife.
8. Let the dish rest for 15 minutes before serving to allow the sauce to set. Garnish with fresh thyme leaves.

Notes

• Salt Conversion: I highly recommend using Diamond Crystal kosher salt for this recipe. If you only have fine table salt, reduce the amount to 1 teaspoon to avoid over-salting.
• The Science of Starch: Do not rinse the potatoes after slicing. The surface starch is crucial for starch gelatinization, which binds the cream and milk together, preventing the sauce from breaking into a greasy mess.
• Workflow Warning: Keep a close eye on the saucepan when simmering the potatoes in cream. Dairy can boil over in a split second, so keep the heat on medium-low and stir frequently to prevent the bottom from scorching.
• Cheese Selection: Always grate your own cheese from blocks. Pre-shredded cheeses are coated in potato starch or cellulose to prevent clumping, which ruins the smooth, velvety melt of your sauce.
• Storage Behavior: As the dish cools, the starches will continue to lock up. Leftovers will actually appear thicker and hold their shape better the next day, though you may need a splash of milk when reheating to loosen the sauce.

Serving Suggestions

These rich, garlic-forward potatoes are incredibly decadent, making them the ultimate centerpiece for holiday dinners or cozy Sunday feasts.

• Pair this rich side dish with a lighter vegetable like Garlic Butter Sauteed Green Beans to balance the heavy cream.
• Serve alongside a roasted main course, such as a holiday ham or a prime rib roast, where the garlic-infused cream can act as an elegant gravy.
• Balance the decadence with a crisp, acidic salad like a Cranberry Apple Farro Salad tossed in a bright vinaigrette.
• For a comforting, carb-focused feast, serve these potatoes next to a cozy bowl of Creamy Cauliflower Soup.

Storage and Reheating

Leftovers keep beautifully.

Store any remaining potatoes in an airtight container in the refrigerator for up to four days. The cold temperature will cause the cream sauce to solidify into a firm, gelatinous state, but do not panic.

To reheat, place a portion in an oven-safe dish, splash a tablespoon of milk over the top, and cover it with foil. Bake at 350°F (175°C) for 15 minutes until bubbly.

Avoid the microwave if possible.

Microwaving at high power will heat the fats too quickly, causing the cheddar and Gruyère to separate from the cream. If you must use it, reheat at 50% power in short bursts.

Ingredient Substitutes

If you need to adapt this recipe based on what is in your pantry, here are the best tested swaps:

1. Yukon Gold Potatoes: You can substitute Russet potatoes, though they will yield a slightly starchier, softer texture. Avoid red or waxy potatoes as they do not contain enough starch to thicken the sauce. If you want a completely different potato experience, try making a Twice Baked Potato Casserole instead.
2. Gruyère Cheese: Fontina, Swiss, or Emmental cheese make excellent substitutes, offering a similar nutty flavor profile and excellent melting capability.
3. Heavy Cream: If you want a slightly lighter dish, you can use half-and-half, but you must add a tablespoon of all-purpose flour to the simmer to prevent the lower-fat dairy from curdling. Alternatively, check out our Cheesy Au Gratin Potatoes for a slightly different cheese-to-sauce ratio.

There is something incredibly therapeutic about layering sliced potatoes and watching them transform into a golden, bubbling masterpiece. Grab your favorite baking dish, put on some music, and let the garlic fill your kitchen.