I used a rum ostensibly from Barbados but it's far too sweetened to be worthy of that origin and a herbal liqueur with a more prominent wormwood flavour than chartreuse. The result was quite pleasing all the same. Quick aside Jason recommends Xaymaca from planteray but in the recipe above the only recommended rum is Myer's dark. In fact many cocktails recommend only Myer's but would not any aged pot still jamaican do?