Potato Soup
["8 to 10 medium red potatoes, peeled and diced", "3 to 4 stalks celery, diced", "1 medium onion, diced", "milk", "1 stick margarine", "pepper to taste"]
["Combine first 3 ingredients and cover with water, adding salt to taste.", "Boil until vegetables are tender and pour off water. Cover with milk, adding margarine and pepper.", "Bring to a boil, watching carefully to prevent sticking.", "Mix a paste of water and flour; add to potato mixture.", "Add slowly and cook until desired thickness."]
["red potatoes", "stalks celery", "onion", "milk", "margarine", "pepper"]