I was inspired in part by my peanut butter-chocolate cake that I baked for my own birthday awhile back. It was so yummy and tasted just like a Reese's peanut butter cup. Of course, I didn't want to pawn my own favorite cake off on my friend, so I asked what her favorite candy bar was. What a good friend I am! Turns out, it is the Twix bar. Of course, through all of my searching the comprehensive boards of pinterest, I could not find a recipe for a Twix cake. So, I had to improvise.
I did happen upon Kat's Sweet Somethings' recipe for Double Salted Caramel Cake and thought it could work as a starting point. Her dessert features brown sugar cake, caramel filling, and caramel icing. Not quite right, but almost. I took what she provided and tweaked it a bit. I used the caramel filling (and her tutorial for making caramel is really fantastic, with pictures and everything), and iced the cake with a milk chocolate buttercream with caramel swirls across the top. It was really, very good.
Too bad I didn't think to take a picture after it was cut, but I didn't want to be that sort of crazy.