Ingredients:  
  6 medium potatoes, peeled and sliced
6 tbls. butter or margarine
  2 carrots, diced
6 tbls. all-purpose flour
  6 celery stalks, diced
1 tsp. salt
  2 quarts water ½ teaspoon pepper
  1 onion, chopped 1 ½ cups milk
     
  Cooking Instructions:
 

In a large kettle, cook potatoes, carrots and celery in water until tender, about 20 minutes. Drain, reserving liquid and setting vegetables aside. In the same kettle, sauté onion in butter until soft. Stir in flour, salt and pepper; gradually add milk, stirring constantly until thickened. Gently stir in cooked vegetables. Add 1 cup or more of reserved cooking liquid until soup is desired consistency.
Yield: 8-10 servings (about 2 ½ quarts).