From my friend, Liz.
1 cube butter
3 lb yellow onions, coarsely chopped
4 celery stalks, diced
7 lg potatoes, cubed
10 c water
3 c Swiss cheese, grated
Melt the butter in heavy pan. Add onions, stirring constantly to brown. Add celery, potatoes and water. Boil 60 minutes. Crush or mash all vegetables into thick liquid. Bring to a slow boil for 2 minutes. Serve hot, topped with Swiss cheese.