Looks good! I've encountered recipes mixing hot spices like cayenne with chocolate, but have always been hesitant to try them. I can only take a tiny amount of heat. I get the mild sauce at Taco Bell, the mild salsa at the grocery store, mild heat at Indian restaurants, etc. A teaspoon of cayenne would be WAY to much for me, but I would totally do this and put in only a pinch, just to get an idea of how the flavors mix, without hurting my tongue. :)