Lemon Chess Squares
["1 box lemon Supreme cake mix", "1 stick melted butter", "1 egg", "8 oz. cream cheese, softened", "2 eggs", "1 tsp. vanilla", "1 lb. powdered sugar"]
["Mix cake mix, butter and 1 egg well.", "Spread in 13 x 9-inch baking pan."]
["lemon Supreme cake mix", "butter", "egg", "cream cheese", "eggs", "vanilla", "powdered sugar"]