Easy Creamy Au Gratin Potatoes

written by The Recipe Exchange | February 26, 2023

Ingredients

3 tablespoons butter
3 tablespoons flour
1 teaspoon salt
1/8 teaspoon pepper
2 cups milk
1 1/2 cups shredded cheddar cheese
5 cups thinly sliced peeled potatoes about 6 medium
1/2 cup chopped onion

Directions

Preheat oven to 350°.

In a large pan, melt butter over low heat. Whisk in flour, salt and pepper until smooth. Gradually add milk. Bring to a boil. Cook, continually stirring for 2 minutes or until thickened. Remove from heat. Add the cheese and stir until melted. Add potatoes and onion and stir until coated with cheese mixture.

Spray a 9×12 baking dish with non-stick spray. Add potatoes to the baking dish. Cover and bake 1 hour. Uncover; bake 20-30 minutes or until the potatoes are tender.