I also really wanted to do something with these adorable Reeses hats, since they're adorable and Brent has a serious weakness for the chocolate/peanut butter combination. When I stumbled upon the Reese's Cup Chocolate Peanut Butter Cake at Annie Eats, I knew this would be the foundation for my cake.
I don't think the pictures really did it justice (we were all racing around to get ready for graduation so there aren't as many pictures as I'd like anyway), because I was pretty proud of myself for getting it to look halfway decent.
Unfortunately, the cake tasted pretty terrible. The consistency was bizarre - almost like a pound cake (you can tell from the picture). I don't know if I did something wrong, or if the recipe just wasn't a chocolate cake that I love (Annie used an adaptation of Dorie Greenspan's chocolate cake). The peanut butter frosting (from Ina Garten) was absolutely incredible, though. We ended up baking mini cupcakes from a box mix and salvaging the frosting.