Crispy potato roast

Ingrediënten

• 3 tablespoons unsalted butter, melted
• 3 tablespoons extra-virgin olive oil
• 4 pounds russet potatoes, peeled
• 4 shallots, thickly sliced lengthwise
• coarse salt
• 1/2 to 1 teaspoon red-pepper flakes — optional
• 8 sprigs thyme

Materiaal

• round 9-inch baking dish
• mandoline
• small bowl
• oven

Bereiding

1. 1

   Preheat oven; mix butter and oil: Preheat oven to 375°F. In a small bowl, combine butter and oil.

2. 2

   Prep baking dish and slice potatoes: Brush bottom of a round 9-inch baking dish with some butter mixture. Using a mandoline, slice potatoes very thinly crosswise.

3. 3

   Arrange potato slices in dish; brush with butter: Arrange potato slices vertically in dish. Wedge shallots throughout. Sprinkle with salt and red pepper flakes (if using); brush with remaining butter mixture.

4. 4

   Bake, add thyme and bake more: Bake 1 1/4 hours. Add thyme and bake until potatoes are cooked through with a crisp top, about 35 minutes more.⏱ 110 min