Potato Soup
["6 medium potatoes, peeled and diced", "2 carrots, diced", "6 celery stalks, diced", "2 qt. water", "1 onion, chopped", "6 Tbsp. butter or margarine", "6 Tbsp. all-purpose flour", "salt and pepper to taste", "1 1/2 c. milk"]
["Cook potatoes, carrots and celery in water. Saute onion in butter until soft.", "Stir in flour, salt and pepper; gradually add milk, stirring constantly until thickened.", "Add this to the vegetables already cooked.", "Makes 2 1/2 quarts."]
["potatoes", "carrots", "celery stalks", "water", "onion", "butter", "flour", "salt", "milk"]