Step 1

Preheat oven to 350°F. Line an 9x9-inch baking dish with parchment paper.

Step 2

In a bowl, mix together the cake mix, melted butter and 1 egg until a soft dough forms. Press into the bottom of the baking dish.

Step 3

In a stand mixer, combine together the cream cheese, 2 eggs, sugar and vanilla until smooth. Spread over the cake mix layer.

Step 4

Bake bars for 45 minutes, or until edges are golden brown and the center has set to a soft consistency.

Step 5

Cool COMPLETELY before slicing into bars and serving.