Falernum is a must have ingredient for any tiki enthusiast. It hails from Barbados and has been used in cocktails since at least the 1800s. Just by using a tiny bit, Falernum offers depth and just an almost imperceptible spice that really balances out the sometimes cloyingly sweet and overly boozy tiki cocktails. There is no real definitive recipe for Falernum, but each recipe I’ve seen calls for over proof rum, sugar, lime, almond and clove.