• Preheat oven to 325 degrees.

Bottom Layer

• Spray a 9x13 pan with cooking spray.
• Combine cake mix, egg, and melted butter and mix with stand mixer until thick dough forms.
• Press into the 9x13 pan.

Cookie Dough Filling

• Cream butter and sugar together. Add milk and vanilla until smooth. Add salt and flour until soft dough forms then stir in chocolate chips.
• Spread the cookie dough on top of cake base.

Top Layer

• Beat cream cheese and brown sugar until smooth. Add eggs and vanilla, mixing until smooth. Scrape sides occasionally.
• Beat in powdered sugar until there are no lumps.
• Pour mixture over cookie dough layer.
• Place pan on a cookie sheet and bake for 30-35 minutes until edges are lightly browned and center is nearly set.
• Cool on counter top, then store in fridge in air tight container.