Clam Chowder
["4 qt. water", "1 c. onion", "1/2 lb. margarine", "2 cans evaporated milk", "5 lb. potatoes, cubed", "1 1/2 c. celery", "2 cans chopped clams", "2 Tbsp. cornstarch"]
["Fill large saucepan with 4 quarts water.", "Add potatoes, onion and celery.", "Let boil until vegetables are tender.", "Add salt to taste, the margarine and clams.", "Add the cornstarch to the boiling mixture.", "Let boil again."]
["water", "onion", "margarine", "milk", "potatoes", "celery", "clams", "cornstarch"]