This recipe was given to me by family friends years ago.
1 box (2-layer size) yellow cake mix
1 stick butter
1 box (1 lb) powdered sugar
1 (8-oz) brick cream cheese
Mix the cake mix, butter, and 1 egg together; press into the bottom of a 9 x 13-inch baking pan.
Mix the powdered sugar, cream cheese, and remaining 2 eggs together and beat well until smooth. Pour the mixture over the cake mix batter and bake at 350 degrees for 40 minutes. Allow to cool before cutting.