1 1-lb. box powdered sugar
1 stick butter
1 box Duncan Hines yellow cake mix
1 (8-oz.) pkg. Philadelphia cream cheese
1 tsp. vanilla
Mix butter, cake mix and 1 egg until crumbly. Press mixture into 9 x 13 x 2 pan. Cream cream cheese, powdered sugar, vanilla and 3 eggs until fluffy. Pour mixture over crumb crust. Bake at 325° F for 45 minutes until golden brown. Cool and cut into squares.