The cocktail is sweet and sour, just how a Tiki-cocktail should be, BUT combined with dark chocolate, you can really play with how the tastes react to...
Excellent cocktail for a rum fan such as myself - creative, flavourful and complex. I only wish I had had some dark chocolate to enjoy it with. I took Benjamin Kay's advice and added a sprinkle of cinnamon on top of the cacao bitters (which should really feature in the ingredients list, but otherwise I have no criticisms at all!)
Great riff mate, I've been looking through user submissions to try something different, I will make this again and throw some chocolate bitters in the shaker, I didn't have dark chocolate but will definitely try it with some next time. Maybe add a sprinkle of cinnamon on top of the foam to.