Classic Potatoes au Gratin

By á-76528

Ingredients

• purpose flour 2 1/2 cups milk 2 tablespoons Dijon
• style mustard 1/4 teaspoon salt 1/4 teaspoon black pepper

Preparation

Step 1

Directions

1.Preheat oven to 400°F. Lightly grease a 13 × 9-inch baking dish.

2.Cut potatoes into thin slices. Layer potatoes in prepared baking dish. Top with Cheddar and Swiss.

3.Melt butter in a medium saucepan over medium heat. Stir in flour; cook 1 minute. Stir in milk, mustard, salt and black pepper; bring to a boil. Reduce heat and cook, stirring constantly, until the mixture thickens. Pour the milk mixture over cheese layer. Cover dish with foil.

4.Bake 30 minutes. Remove foil and bake until potatoes are tender and top is golden and lightly browned, about 15 to 20 minutes more. Remove from oven; let stand 10 minutes before serving.

1.Preheat oven to 400°F. Lightly grease a 13 × 9-inch baking dish.

2.Cut potatoes into thin slices. Layer potatoes in prepared baking dish. Top with Cheddar and Swiss.

3.Melt butter in a medium saucepan over medium heat. Stir in flour; cook 1 minute. Stir in milk, mustard, salt and black pepper; bring to a boil. Reduce heat and cook, stirring constantly, until the mixture thickens. Pour the milk mixture over cheese layer. Cover dish with foil.

4.Bake 30 minutes. Remove foil and bake until potatoes are tender and top is golden and lightly browned, about 15 to 20 minutes more. Remove from oven; let stand 10 minutes before serving.