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A close-up of a white scalloped baking dish filled with thinly sliced Yukon Gold potatoes in a creamy white sauce, topped with melted, browned cheese and fresh sprigs of thyme.

Creamy Scalloped Potatoes

Rich and comforting scalloped potatoes made with thinly sliced Yukon Gold potatoes layered in a creamy homemade sauce and topped with melted cheese. A perfect side dish for family dinners and holiday meals.
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Prep Time 20 minutes
Cook Time 1 hour 10 minutes
Total Time 1 hour 30 minutes
Servings: 6 servings
Course: Side Dish
Cuisine: American
Calories: 410
Ingredients Equipment Method Notes

Ingredients
  

  • 6 medium Yukon Gold potatoes thinly sliced
  • 2 tablespoons butter
  • 1 small onion finely chopped
  • 3 cloves garlic minced
  • 2 tablespoons all-purpose flour
  • 2 cups whole milk
  • 1 cup heavy cream
  • 1 1/2 cups shredded mozzarella cheese
  • 1/2 cup grated cheddar cheese
  • 1 teaspoon salt or to taste
  • 1/2 teaspoon ground black pepper
  • 1/2 teaspoon ground nutmeg
  • 1 teaspoon dried thyme
  • 2 tablespoons fresh parsley chopped, for garnish

Equipment

  • 9x13 inch baking dish
  • Medium saucepan
  • Whisk

Method
 

  1. Preheat oven to 375°F (190°C). Grease a 9x13-inch baking dish with butter.
  2. Melt butter in a saucepan over medium heat. Add onion and cook 3-4 minutes until soft. Stir in garlic and cook 30 seconds.
  3. Sprinkle flour over the onion mixture and whisk for 1-2 minutes to form a smooth roux without browning.
  4. Gradually whisk in milk, then add heavy cream. Cook 4-5 minutes until the sauce thickens.
  5. Season with salt, pepper, nutmeg, and thyme. Remove from heat and stir in 1 cup mozzarella until melted.
  6. Layer potatoes in the baking dish and pour some sauce over them. Repeat layers until all potatoes are used, finishing with sauce.
  7. Top with remaining mozzarella and cheddar cheese.
  8. Cover with foil and bake 40 minutes. Uncover and bake 25-30 minutes more until potatoes are tender and top is golden.
  9. Let rest 10-15 minutes before serving. Garnish with chopped parsley.

Notes

For extra flavor, add a pinch of smoked paprika or substitute Gruyère cheese for part of the mozzarella.