4 lg. potatoes
1 can mushroom soup
1 sm. onion, minced
4 oz. grated Cheddar cheese
1/3 c. milk
1 tbsp. butter

Pare and slice potatoes, then alternate layers of potatoes, soup, onion and cheese. Salt each layer of potatoes. Pour milk over top and cut butter in small pieces and arrange on top also. Cover and bake at 350 degrees for about 1 hour. Uncover the last few minutes.