I call these bars "lazy" because you use a boxed brownie mix. But if you have your own recipe and aren't feeling lazy (like me) then use your own! This recipe is all over Pinterest. I made them the other day and my peanut butter lovers here couldn't get enough!
Prepare the brownies according to package directions in a greased 13 x 9 pan. Let cool completely.
Combine the peanut butter, powdered sugar, and 1/2 cup of butter. Spread on top of the brownie mix and chill in the fridge for 1 hour.
Melt the chocolate chips and the 6 tbsp of butter in the microwave or on the stovetop. Spread over the peanut butter mixture and allow to cool before cutting into bars (I actually popped my brownies back into the fridge for an hour to get them to set up nice). Enjoy!