Refrigerator Mashed Potatoes(Serves 12)  
["5 lb. potatoes (9 large)", "2 (3 oz.) pkg. cream cheese", "1 c. sour cream", "2 tsp. onion salt", "1 tsp. salt", "2 tsp. butter", "dash of garlic salt"]
["Do not refrigerate while making.", "Use a plastic container.", "Do not use a metal spoon or electric mixer."]
["potatoes", "cream cheese", "sour cream", "onion salt", "salt", "butter", "garlic"]