6 med. potatoes
1/2 c. melted butter
1/4 tsp. pepper
1/2 tsp. salt
2 c. shredded cheese
1/3 c. chopped onion
1 pt. sour cream

Cook potatoes in jackets. Remove skins and cool completely in refrigerator. Can be overnight. When completely cold, grate on course grater. Mix with remaining ingredients. Spoon into a 1 1/2 quart baking dish. Bake at 350 degrees for 35 minutes.