1. Preheat oven to 350F. Line two 8×8 baking dishes (or can use a 9×13” pan) with parchment paper leaving a 1” overhang.

Make the crust:

1. In a bowl melt together the butter and peanut butter. Add in the crushed pretzels and brown sugar. Mix until coated and well combined.
2. Press the mixture into the bottoms of both pans.

Make the cookie dough:

1. In the bowl of a stand mixer cream the butter and sugars. Add in the egg and vanilla and mix until just combined.
2. In a separate bowl whisk together the flour, baking soda, baking powder and salt.
3. Add the flour mixture into the egg mixture and mix just until combined. Add the chocolate chips and mix until incorporated.
4. Press the cookie dough mixture on top of the pretzel crusts in both pans.
5. Bake for 20-27 minutes or until the cookie dough is golden brown. Remove from the oven and allow to cool in the pan.
6. While the bars are cooling spread out the melted chocolate over top of both cookies.

Make the Peanut Butter Marshmallow Topping:

1. Place the popcorn in a large bowl (removing any kernels that didn’t pop). In a medium sauce pan add the butter, marshmallow topping, peanut butter and corn syrup and heat over medium heat until smooth and creamy.
2. Pour the mixture over the popcorn and gently mix coating all pieces.
3. Place spoonfuls of the popcorn topping on top of the cookie pressing it into the melted chocolate.
4. Once cooled drizzle the melted chocolate over top and cut into bars. Store in an air tight container.