Description
The ultimate comfort food, Potatoes Au Gratin combines tender slices of red potatoes and onions with a rich, creamy cheese sauce. This dish is baked to perfection, resulting in a golden-brown, bubbling casserole that is both hearty and satisfying.
Perfect for family dinners or special occasions, Potatoes Au Gratin is a classic recipe that never fails to impress. The combination of cheddar and gruyere cheeses adds a depth of flavor, making every bite a cheesy delight. Serve it alongside your favorite main dishes, or enjoy it as a standalone meal for a cozy night in.
Ingredients
2 ½ pounds red potatoes
1 onion
3 tablespoons butter
3 tablespoons all-purpose flour
1 teaspoon dry mustard powder
2 cups milk
1 cup cheddar cheese, shredded
½ cup gruyere cheese, shredded
Salt & pepper to taste
Instructions
Preheat oven to 400°F (200°C).
Wash potatoes and slice into ⅛” thin slices. Slice onion as thin as possible.
Layer potatoes and onions in little stacks. Place stacks upright in a greased 2.5qt to 3qt casserole dish.
Melt butter in a saucepan over medium heat. Stir in flour and cook for 2-3 minutes.
Add mustard powder, milk, salt, and pepper. Whisk until thick and bubbly. Remove from heat and stir in cheddar and gruyere cheeses until melted.
Pour cheese sauce over potatoes. Cover with foil (sprayed with cooking spray) and bake for 60 minutes.
Remove foil and bake for an additional 20-30 minutes or until lightly browned and potatoes are cooked through. Let cool for 15 minutes before serving.
- Prep Time: 20 minutes
- Cook Time: 90 minutes
Nutrition
- Calories: 350 kcal