Cheesy Easy Scalloped Potatoes

A comforting and creamy dish of scalloped potatoes baked with layers of melted cheese, perfect for chilly nights and festive gatherings.

Prep Time 20

Cook Time 1 5

Total Time 1 25

Course Comfort Food, Side Dish

Cuisine American

Servings 8 servings

Calories 400 kcal

3 pounds russet or Yukon Gold potatoes, peeled and thinly sliced Yukon Gold gives a creamier texture.
2 tablespoons unsalted butter For a golden, savory base.
2 cloves garlic, minced Bright, aromatic flavor.
2 tablespoons all-purpose flour Thickens the sauce; use gluten-free flour if needed.
2 cups milk (whole or 2 percent) For a rich, silky sauce; try almond milk for a lighter version.
1 cup heavy cream Makes the sauce luxurious; substitute extra milk for a lighter dish.
2 cups sharp cheddar cheese, grated Sharp cheddar provides classic tang; mix in Gruyere for nutty depth.
1/2 cup Parmesan cheese, grated Boosts savory, salty notes.
1 teaspoon Dijon mustard Adds a subtle lift.
Salt and freshly ground black pepper, to taste.
1 teaspoon fresh thyme leaves or 1/2 teaspoon dried thyme Optional, for an herbal note.
Breadcrumbs or crushed potato chips for topping Optional, for crunch.

Preheat your oven to 375°F (190°C). Grease a 9x13-inch baking dish with butter and set aside.
In a medium saucepan over medium heat, melt the butter. Add minced garlic and cook until fragrant, about 30 seconds. Stir in the flour and cook for 1 minute, whisking constantly.
Gradually whisk in the milk and heavy cream until the sauce is silky and free of lumps. Stir in the Dijon mustard, half of the cheddar, half of the Parmesan, salt, pepper, and thyme.
Cook until the cheese melts and the sauce thickens slightly.
Arrange a single layer of potato slices in the prepared dish, slightly overlapping. Pour a third of the cheese sauce over the potatoes. Repeat two more layers, finishing with sauce.
Sprinkle remaining cheddar and Parmesan on top. Add a light dusting of breadcrumbs or crushed chips if desired.

Cover with foil and bake for 35 minutes.
Remove foil and bake for an additional 20 to 30 minutes until the top is golden and the potatoes are tender.
Let the dish rest for 10 minutes before serving.

Can be made ahead and stored in the refrigerator for up to 24 hours before baking. Leftovers can be stored in an airtight container for up to 4 days.

Keyword baked potatoes, Cheesy Potatoes, Comfort Food, potato casserole, Scalloped Potatoes