Chess Squares
["1 butter cake mix", "1 egg", "1 stick butter, melted", "1 (8 oz.) cream cheese, softened", "3 eggs", "1 tsp. vanilla", "1 box confectioners sugar"]
["Mix cake mix, egg and butter; press into greased 9 x 13-inch pan.", "Mix remaining ingredients with electric mixer; pour over cake mix crust.", "Bake 30 to 40 minutes at 350\u00b0 until light brown. Let cool before cutting."]
["butter", "egg", "butter", "cream cheese", "eggs", "vanilla", "confectioners sugar"]