01 -
Cover the bottom of a 10x15-inch baking pan with wax paper and put it aside for later.
02 -
Take 1 1/2 cups of the chocolate chips and place them in a microwave-safe bowl. Heat them up in short 20-second bursts, stirring after each round, until it’s all nice and melted. Spread this melted chocolate evenly over the wax paper, leaving a little space around the edges.
03 -
Put the chocolate layer into the fridge and let it firm up for about 10 minutes.
04 -
In a medium-sized bowl, mix the peanut butter, powdered sugar, and the softened butter. Use a hand mixer at medium speed and blend it all together until smooth. Evenly spread this mix over the hardened chocolate layer.
05 -
Place the pan back in the fridge for another 5-10 minutes, so the peanut butter layer sets properly.
06 -
Use the rest of the chocolate chips (2 cups) and melt them in the microwave the same way you did before. Spread this melted chocolate evenly on top of the firm peanut butter layer.
07 -
While the chocolate layer is still soft, sprinkle the Reese's Pieces on top. Lightly press them into the chocolate to make sure they stick.
08 -
Let everything chill in the fridge until completely solidified, about 10 minutes. Once it’s fully set, break it up into pieces and keep them in an airtight container.