Make Ahead Holiday Mashed Potatoes
["12 medium potatoes", "1 (8 oz.) cream cheese", "1/4 c. butter or margarine", "1/2 c. sour cream", "1/2 c. milk", "2 eggs, slightly beaten", "1 tsp. salt", "1/4 c. chopped onion (optional)"]
["Cook and mash potatoes; add cream cheese in small pieces and then the butter; beat well.", "Add sour cream.", "To the milk, add the eggs and onion; add to the potatoes mixture.", "Beat until light and fluffy.", "Place in greased 9-inch casserole and refrigerate several hours or overnight.", "Bake in preheated oven at 350\u00b0 for 45 minutes until lightly browned on top."]
["potatoes", "cream cheese", "butter", "sour cream", "milk", "eggs", "salt", "onion"]