Ellie'S Potato Soup
["1/2 or more medium onion", "1 Tbsp. butter", "raw potatoes, diced, or leftover mashed potatoes", "1 c. milk (more if needed)", "1 can cream of celery soup", "1 can cream of potato soup", "1 can water", "salt and pepper"]
["Saute onion in butter until soft (not brown).", "Add potatoes and milk.", "Cook a few minutes.", "Add remaining ingredients.", "Cook and stir."]
["onion", "butter", "potatoes", "milk", "cream of celery soup", "cream of potato soup", "water", "salt"]