tattoo rum recipes

What is Morgan's Rum Tattoo to make Captain, so black?
The bottle is clear, but if you buy it, you'd swear it was a black bottle. It seems a very different taste too. I'm just wondering what is the difference from the original recipe?
I believe that this type of rum is a "herbal" have taste. I would not be surprised if the stain was to be artificial.
Jamaican Oxtail Recipe- Tutorial 2/2






