Velveeta Fudge
["1 lb. margarine", "1 lb. Velveeta cheese", "4 lb. powdered sugar", "1 c. cocoa", "1 Tbsp. vanilla", "chopped walnuts"]
["Sift powdered sugar and cocoa together into mixing bowl.", "Melt margarine and Velveeta (over medium heat) in saucepan until smooth (stir continuously).", "Add margarine and Velveeta to powdered sugar and cocoa mixture.", "Add vanilla.", "Add nuts (if desired). Mix well.", "Spread into buttered 9 x 13-inch pan and chill."]
["margarine", "Velveeta cheese", "powdered sugar", "cocoa", "vanilla", "walnuts"]