Scalloped Potatoes

Scalloped Potatoes

Thin-sliced potatoes baked in a rich, garlicky cream sauce until perfectly tender with golden, bubbly edges. The ultimate comfort side dish.
Prep Time 20 minutes
Cook Time 1 hour 15 minutes
Total Time 1 hour 35 minutes
Servings: 8 servings

Ingredients
  

  • 3 lbs Yukon Gold potatoes thinly sliced, about 1/8 inch
  • 3 tablespoons unsalted butter
  • 1 yellow onion thinly sliced
  • 4 cloves garlic minced
  • 3 tablespoons all-purpose flour
  • 2.5 cups whole milk warmed
  • 1 cup heavy cream
  • 2 cups shredded Gruyere cheese or sharp cheddar
  • 1.5 teaspoons salt
  • 1/2 teaspoon black pepper
  • 1/4 teaspoon nutmeg

Method
 

  1. Preheat oven to 375°F (190°C). Butter a 9x13 inch baking dish.
  2. Melt butter in a saucepan over medium heat. Sauté onion 5 minutes until softened. Add garlic and cook 1 minute.
  3. Whisk flour into the butter mixture and cook 1 minute. Gradually pour in warmed milk and cream, whisking constantly.
  4. Bring to a gentle simmer, stirring until thickened, about 5 minutes. Season with salt, pepper, and nutmeg. Remove from heat and stir in half the cheese.
  5. Layer half the potato slices in the baking dish. Pour half the cream sauce over them. Repeat with remaining potatoes and sauce. Top with remaining cheese.
  6. Cover with foil and bake 45 minutes. Remove foil and bake 25–30 more minutes until potatoes are tender and top is golden.
  7. Rest for 15 minutes before serving — this helps the sauce set.

Notes

Use a mandoline slicer for uniform potato thickness. Uniform slices = even cooking throughout.

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