01 -
Stick the pan in the fridge for two hours or until you see the chocolate set nice and firm.
02 -
Grab the slab by the parchment, lift it out, then cut into 24 pieces with a hot, sharp knife.
03 -
Use your spatula to cover the peanut butter base with the melted chocolate mixture.
04 -
Pop chocolate chips, peanut butter, and butter into a microwaveable bowl. Nuke it for 30 seconds at a time, mixing between bursts, until totally smooth.
05 -
Smoosh the peanut butter dough into the pan and press it down flat and even as you can.
06 -
Dump in the powdered sugar, graham cracker crumbs, vanilla, and a pinch of salt. Stir till it all sticks together like dough.
07 -
In your big bowl, swirl together melted butter and peanut butter till mixed up well.
08 -
Cover a 23x33 cm pan with parchment so it hangs over the sides for easy lifting later.