1/2 cup milk chocolate chips OR semi-sweet chocolate chips
Preheat oven to 350. Line a 9×9 inch pan with foil and spray with cooking spray.
In a medium sauce pan, melt butter and chocolate over medium heat and stir until smooth. (This can also be done in the microwave in a microwave-safe bowl. Stir every 30 seconds to make sure it doesn’t burn)
Transfer metled chocolate to a large bowl. Add eggs and sugar and mix until smooth. Stir in vanilla and salt. Add flour and mix until just combined.
Pour 1/2 of the batter into prepared pan. Gently press peanut butter cups into the batter. Pour the rest of the batter over the peanut butter cups. Bake 30-35 minutes until an inserted toothpick comes out mostly clean.
In a medium bowl combine peanut butter, brown sugar and mix until smooth. Add egg and mix again until smooth.
In a small bowl whisk together oats and baking soda. Add oats to wet mixture and mix until combined. Stir in peanut butter chips and chocolate chips.
Drop teaspoon-sized dollops of cookie dough onto the baked brownies. Continue to do this until the dough is gone or the brownies are completely covered.
Return the pan to the oven for about 10 minutes or until cookie layer starts to brown slightly.
Allow to cool completely before cutting into bars. Store in airtight container at room temperature (or chilled) for up to 5 days.