For each serving use:

1 potato
1 onion, chopped
1 stalk celery
1/2 c. milk
1 tsp. butter
Salt and pepper to taste

Cut potato and celery into bite sized pieces. Put in pan with onion. Cover with water. Boil until done. Add milk, butter, salt and pepper.

(For lowfat soup, use skim milk and butter substituted).