1 lg. box white or yellow cake mix
3 eggs
1/2 c. butter, softened
8 oz. cream cheese, softened
1 lb. powdered sugar

Mix cake mix with one egg and the butter. Press into a greased 9x13 inch pan. Beat cream cheese, 2 eggs and the powdered sugar until smooth and pour over the crust. Bake at 350 degrees for 35-45 minutes or until browned on top. Cut into squares.