Party Mashed Potatoes
["8 to 10 cooked potatoes", "1 c. sour cream", "3 oz. cream cheese", "milk"]
["Mash potatoes.", "Add remaining ingredients.", "Beat until fluffy, adding milk, if necessary.", "Put in a buttered dish; dot with butter.", "Bake at 350\u00b0 for 30 minutes."]
["potatoes", "sour cream", "cream cheese", "milk"]