01 -
Line an 8x8 baking dish with foil, leaving an overhang on the sides for easier removal of the bars.
02 -
In a large microwave-safe bowl, melt the butter.
03 -
Add the powdered sugar, graham cracker crumbs, and peanut butter to the bowl with melted butter. Mix until well combined.
04 -
Spread the peanut butter mixture evenly into the bottom of the prepared pan.
05 -
In a medium microwave-safe bowl, melt the chocolate chips in 30-second intervals, stirring in between, until smooth.
06 -
Spread the melted chocolate evenly over the peanut butter layer.
07 -
Refrigerate the bars for 1 hour until firm.
08 -
Carefully remove the bars from the pan using the foil overhang. Slice into 16 bars and serve.