Potato Soup
["3 c. potatoes, diced", "1 small onion, chopped", "3 Tbsp. margarine", "1 tsp. salt", "1 c. water", "black pepper to taste"]
["Cook until potatoes are tender.", "Add 2 cups milk.", "Thick with 2 tablespoons flour mixed with 1/4 cup warm water.", "Simmer for 10 minutes."]
["potatoes", "onion", "margarine", "salt", "water", "black pepper"]