18 1/2 oz. box yellow cake mix
4 eggs
1 stick butter, very soft
8 oz. cream cheese, softened
1 tsp. vanilla
1 box powdered sugar

Mix one egg, slightly beaten, with cake mix and butter. Batter will be quite thick. Press mixture evenly in 9x13 inch pan. Set aside.

Beat cream cheese with remaining 3 eggs and vanilla. Blend in powdered sugar and beat until smooth. Pour over cake mix crust. Bake at 350 degrees for 10 minutes, then at 325 degrees for 30 minutes. Watch carefully. Do not burn.