I've done a lot with them, over the last few years, but Paul still isn't a fan.
This recipe may have finally turned him around. As the reviews on the website said (which I should have read beforehand) the batter is too thick for a blender. I ended up having to scrape it into a bowl to finish making it, because I was in pretty real danger of burning out the motor. But eventually a startlingly red batter forms, which bakes to a delectably rich, moist chocolate cake. Paul said I should use this recipe every time I want to make a chocolate cake from here on in. So that's a very good sign.