Reese's Peanut Butter Chocolate Ooey Gooey Bars are a dream dessert for all you chocolate-peanut butter lovers out there.
Preheat oven to 350°F.
Prepare a 13x9-inch baking pan by lining it with parchment paper or spray with a non-stick spray.
In a large bowl, add the cake mix, one stick of melted butter, and one egg and mix until well combined. Press the mixture into the prepared baking pan. (The mixture will be thick)
Sprinkle the chopped Reese's Peanut Butter Cups over the cake mix mixture.
In a separate bowl, combine the peanut butter and miniature Reese's Peanut Butter Cups. Melt in the microwave in 20-second intervals, stir until creamy.
Add in the cream cheese and use an electric mixer to beat for 2-3 minutes until creamy.
Add eggs, one at a time, mixing well.
Add melted butter and beat until combined.
Add in the confectioners' sugar and mix until incorporated.
Pour the peanut butter mixture over the chopped Reese's Peanut Butter Cups and bake for 35-40 minutes. Do not overbake; the center will be slightly jiggly, but it will be done. Let the bars cool completely before refrigerating for about 2 hours. After bars are chilled, cut into squares and enjoy! Note: Bars will still be gooey after chilling.