Boil, chill, peel, and cube potatoes. Fold in cheese, sour cream, onion, salt, ... the butter. Pour potato mixture into the dish and ... Bake for 30 minutes.
Beat egg yolks with mashed ... blended. Stir in cheese and seasonings. Before baking, beat ... and fold into potato mixture. Spoon into a greased ... minutes. Serves about 6.