5 Minute Chocolate Cake which I have actually made and came out tasty, even though I forgot the splash of vanilla and chocolate chips- I just put some nesquik chocolate syrup on it. (Did you know that 'Hershey's chocolate syrup' doesn't actually have cocoa in it? I didn't until I looked at the ingredients and couldn't find it...)
Super fattening though, but I've been swimming every day it'll balance out in my favor.