Cheese Stuffed Potatoes
["4 medium baking potatoes, baked", "1/4 c. butter or margarine", "1/2 c. milk", "salt and pepper to taste", "1 c. grated Cheddar cheese or finely diced American processed cheese (1/4 c. reserved)", "1 Tbsp. finely chopped onion"]
["Bake potatoes.", "After standing time, halve potatoes lengthwise and carefully scoop out inside.", "Set shells aside.", "Combine potatoes, butter, milk, salt and pepper in medium mixing bowl. Mash until fluffy."]
["baking potatoes", "butter", "milk", "salt", "Cheddar cheese", "onion"]