Au Gratin Potatoes
["2 lb. potatoes (6 medium)", "1 medium onion, chopped", "1/4 c. margarine or butter", "1 Tbsp. all-purpose flour", "1 tsp. salt", "1/4 tsp. pepper", "2 c. milk", "3 c. shredded natural sharp Cheddar cheese", "1/4 c. fine dry bread crumbs", "paprika"]
["Clean potatoes and cut into thin slices to make about 4 cups. Cook and stir onion in margarine in 2-quart saucepan until tender.", "Stir in flour, salt and pepper.", "Cook over low heat, stirring constantly, until mixture is bubbly.", "Remove from heat. Stir in milk and 2 1/2 cups cheese.", "Heat to boiling, stirring constantly.", "Boil and stir for 1 minute.", "Place potatoes in ungreased 1 1/2-quart casserole.", "Pour cheese sauce on potatoes. Bake, uncovered, in 375\u00b0 oven for 1 hour.", "Mix remaining cheese and bread crumbs.", "Sprinkle over potatoes.", "Sprinkle with paprika. Bake until top is brown and bubbly, 15 to 20 minutes longer. Makes 6 servings."]
["potatoes", "onion", "margarine", "flour", "salt", "pepper", "milk", "natural sharp", "bread crumbs", "paprika"]