Mashed Potatoes
["5 lb. potatoes, mashed", "1/3 to 3/4 c. sour cream", "1 (4 oz.) pkg. cream cheese", "salt", "4 Tbsp. butter"]
["Add together.", "Place in greased casserole dish, dotted with butter.", "Bake at 350\u00b0 until brown.", "May be refrigerated for 2 weeks."]
["potatoes", "sour cream", "cream cheese", "salt", "butter"]