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Cheesy Baked Scalloped Potatoes

Rich, creamy, and packed with cheddar cheese, these scalloped potatoes are the ultimate cozy side dish. Perfect for holidays or family dinners!
Prep Time 10 minutes
Cook Time 1 hour
Total Time 1 hour 10 minutes
Course Side Dish
Cuisine American
Servings 8 scallops
Calories 408 kcal

Equipment

  • - 9×13-inch baking dish
  • - Saucepan
  • - Mandoline or sharp knife
  • Whisk
  • - Aluminum foil

Ingredients
  

  • - 2 ½ pounds russet or Yukon gold potatoes thinly sliced
  • - 3 tablespoons butter
  • - ½ white onion chopped
  • - 3 cloves garlic minced
  • - 2 ½ cups heavy cream
  • - 3 tablespoons all-purpose flour
  • - Salt and black pepper to taste
  • - 1 teaspoon thyme
  • - ½ teaspoon cayenne pepper optional
  • - 3 cups sharp cheddar cheese shredded
  • - 1 tablespoon chopped chives optional

Instructions
 

  • Preheat oven to 375°F. Grease a 9×13-inch baking dish.
  • Slice potatoes thinly (⅛–¼ inch).
  • Melt butter in a saucepan. Add onions and cook 3 minutes. Add garlic, thyme, and flour. Stir 1 minute.
  • Pour in heavy cream. Season with salt, pepper, and cayenne. Stir until smooth.
  • Add 2 cups cheese. Stir until melted.
  • Layer half the potatoes in dish. Pour over half the sauce. Sprinkle ½ cup cheese.
  • Repeat with remaining potatoes, sauce, and cheese.
  • Cover with foil and bake for 40 minutes.
  • Remove foil and bake 20–25 minutes more.
  • Let rest before garnishing with chives or parsley.

Notes

- Can be prepped a day in advance and baked fresh.
- Use fresh-grated cheese for best melt and texture.
- Swap in Gruyère or white cheddar for flavor variation.
Keyword cheesy potatoes, holiday side, scalloped potatoes, Sweet Potato Casserole