Ingredients
- 2 pounds russet potatoes peeled and thinly sliced
- 3 tablespoons unsalted butter
- 3 tablespoons all-purpose flour
- 2 cups whole milk
- 1/2 cup heavy cream
- 1 1/2 teaspoons salt
- 1/4 teaspoon black pepper
- 1 1/2 cups shredded cheddar cheese
- 1/3 cup grated Parmesan cheese
Instructions
- Preheat the oven to 350°F. Grease a 2-quart baking dish with butter.
- Layer the sliced potatoes in the baking dish, seasoning each layer with salt and pepper.
- In a saucepan, melt butter over medium heat. Stir in flour and cook for 1-2 minutes. Gradually whisk in milk and cream, and bring to a simmer until the sauce thickens. Remove from heat and stir in cheddar cheese until melted.
- Pour the cheese sauce over the potatoes. Cover with foil and bake for 1 hour. Remove foil, sprinkle with Parmesan cheese, and bake for another 10-15 minutes until golden and bubbling.
