Easy Scalloped Potatoes

Easy Scalloped Potatoes

3 tablespoons butter or margarine – divided
2 tablespoons flour
2 tablespoons sliced green onions
2 1/4 cups milk
1/2 teaspoon salt
1/8 teaspoon cayenne pepper
1 1/2 tablespoons parmesan cheese
paprika – as needed
1/4 teaspoon white pepper
1 1/3 pounds potatoes – (4 medium) unpeeled, sliced 1/8 inch thick

Grease a 2-quart 8x8x2 inch-baking dish with 1 tablespoon of the butter; set aside. In large saucepan, over medium heat, melt remaining butter. Stir in flour and onion. Cook and stir for 2 minutes. Whisk milk into mixture in a slow, steady stream. Cook for 5 minutes, stirring occasionally; add salt and peppers. Gently stir potatoes into sauce; cook another 2 minutes. Pour potato mixture into prepared baking dish; dust with cheese and paprika. Bake in preheated 350° F oven 50 to 55 minutes, or until bubbly and potatoes are tender.