Preheat oven to 325°

Line a 9x13 pan with nonstick foil.

Mix cake mix with 1 egg and melted butter. Stir until combined and thick.

Press this into the pan.

In a mixer, beat cream cheese smooth,

Add 3 eggs and vanilla.

Add powdered sugar until combined.

Stir in Oreos.

Pour this over the chocolate cake mix and bake approx 40 minutes or until set.

Let cool completely and cut into squares.

adapted from Pinterest Recipe