• 2 1/2 lb. potatoes, cooked, cooled, peeled and sliced
• Sauce:
• 3 1/8 C. milk, heated to warm (in the microwave)
• 1/4 C. minced onion
• 1/4 C. butter
• 1/4 C. flour
• salt and pepper to taste
• 1/2 - 3/4 C. shredded American cheese
• enough cheese slices to cover the top

Cook the potatoes in a covered pan in their jackets in salted water until tender. Cool then peel the potatoes and slice them. In a heavy saucepan, saute the onions in the butter. Add flour and slightly brown it. Add the warm milk, cheese, salt and pepper. Cook until thickened and cheese is melted. Gently mix the cheese with the potatoes. Put in a 9x13-inch pan and cover the top with the cheese slices. Bake at 350 degrees for 1 hour or until center is hot.