Check this out...
I used regular sized peanut butter cups and chopped them to sprinkle over the whole top. The finished fudge has a more caramel-like texture, so it's not exactly fudge. It is also not completely solid, so it needs to be refrigerated. But it's very very easy to make, and really rich, so you only need a small piece. Since I can't trust myself to eat just one small piece, most of it is destined for others.
Oh, and if I make it again (who am I kidding, I'm going to make it again... and again), I think I'll sprinkle just a bit of sea salt between the layers.
Anyway, you're welcome.