Ellie'S Potato Soup - cooking recipe

Ingredients

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

Preparation

Saute onion in butter until soft (not brown).
Add potatoes and milk.
Cook a few minutes.
Add remaining ingredients.
Cook and stir.