I've made three batches of these. Recently. Don't make that face. I shared one of them. :)
It all started with a Pinterst pin. You know the story. I traveled the slippery slope of "I'll just try that" and "I won't eat that many." Denial is no longer an option. If I make them, and don't take them directly to someone to share, I will eat the whole pan.
The recipe is here on NancyCreative.com. I did it pretty much the same way she describes. I just didn't measure the peanut butter. Why measure? Just get a giant scoop and mix it in.
I also was using mini peanut butter cups from Trader Joes instead of Reece's. I ran into a problem there. They have both milk chocolate and dark chocolate mini peanut butter cups at TJ. What's a girl to do? Put them both on top of course!