Description

This indulgent side dish features layers of thinly sliced Yukon Gold potatoes smothered in a silky three-cheese sauce. Rich cheddar, nutty Gruyère, and savory Parmesan create deep, comforting flavors that are perfect for holiday tables, Sunday dinners, or anytime you’re craving cozy food from the oven.

Ingredients

2.5 pounds Yukon Gold potatoes

4 tablespoons unsalted butter

3 tablespoons all-purpose flour

2 cups whole milk

1 cup heavy cream

1.5 cups shredded sharp cheddar cheese

1 cup shredded Gruyère cheese

0.5 cup grated Parmesan cheese

1 teaspoon garlic powder

1 teaspoon onion powder

1.5 teaspoons salt

0.5 teaspoon freshly ground black pepper

1 tablespoon chopped fresh parsley (optional)

Instructions

1. Preheat oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish with butter or nonstick spray.

2. Slice potatoes into thin rounds (about 1/8-inch thick) using a mandoline or sharp knife. Set aside.

3. In a large saucepan over medium heat, melt the butter. Whisk in the flour to form a roux. Cook for 1–2 minutes, stirring constantly.

4. Gradually add milk and cream, whisking until smooth. Simmer for a few minutes until slightly thickened.

5. Stir in garlic powder, onion powder, salt, and black pepper.

6. Reduce heat to low and add cheddar and Gruyère. Stir until cheeses are completely melted and the sauce is smooth.

7. Layer half of the sliced potatoes into the prepared baking dish. Pour half of the cheese sauce over them.

8. Repeat with the remaining potatoes and cheese sauce. Sprinkle Parmesan evenly on top.

9. Cover the dish with aluminum foil and bake for 40 minutes.

10. Remove the foil and bake an additional 25–30 minutes, or until the top is golden brown and bubbly.

11. Let cool for 10 minutes before garnishing with fresh parsley and serving.

Notes

For best texture, slice the potatoes evenly and avoid stacking too thick—this ensures tender results in every bite.

To enhance browning on top, broil for the last 2 minutes, keeping a close eye to prevent burning.

Let the dish rest after baking so the layers set properly and the sauce thickens further.

Prep Time: 20 minutes
Cook Time: 70 minutes
Category: Side Dish
Method: Baked
Cuisine: American

Nutrition

Serving Size: 1/8 of the dish
Calories: 365
Sugar: 3g
Sodium: 490mg
Fat: 23g
Saturated Fat: 14g
Unsaturated Fat: 8g
Trans Fat: 0g
Carbohydrates: 28g
Fiber: 3g
Protein: 12g
Cholesterol: 65mg

Keywords: scalloped potatoes, cheesy potatoes, holiday side dish