Potato Soup
["4 potatoes, cubed", "1 onion", "4 c. water", "salt and pepper to taste", "1/2 stick margarine", "2 Tbsp. cornstarch, mixed with cool water"]
["Boil until done first 4 ingredients.", "Then stir in margarine and thickening.", "If too thick, add milk to thin."]
["potatoes", "onion", "water", "salt", "margarine", "cornstarch"]