Melt 6 tablespoons of the butter and the peanut butter in the microwave (about 1 minute) until smooth.
Add confectioners sugar.
Mix and spread in bottom of 9×9 pan.
Melt remaining butter (1 Tablespoon) and chocolate chips on the stovetop until melted. (I used to do this step in the microwave, but it resulted in a lot of burned chocolate. And that tastes bad.)
Mix and spread on top of peanut butter mixture.
Cover and refrigerate until hard. Cut or break into pieces and enjoy!