1 box yellow cake mix
1 egg
1 stick butter
3 eggs
1 c. cream cheese (8 oz.)
1 box powdered sugar
1 tsp. vanilla

Mix the first 3 ingredients and press into a 9 x 13-inch pan. Combine the remaining ingredients; blend and pour over top of cake mixture.

Bake for 45 minutes to 1 hour at 375°F. Cool and cut into squares.