Most tropical drinks boil down to rum, sugar and lime. Add a few funky syrups and liqueurs, however, and they take on that distinct spiced-but-sweet flavor that is the essence of tiki. Falernum is one of the great granddaddies of tiki liqueurs. It’s the secret sauce that takes a frosty sweet umbrella drink and gives it depth and subtlety.
Used in classics like the Zombie, Pearl Diver, and Three Dots and a Dash, falernum is rum infused with almonds, lime zest, ginger and spices. Non-alcoholic falernum syrup like Fee Brothers is often used to give drinks a bright flavor hit, but the liquored up version does the job even better. Adding alcohol also keeps your precious tiki juice from going bad.