A decent falernum recipe for when you absolutely need to make a cocktail with falernum and can't find any falernum.

What is falernum? OK, let's back up a bit. Falernum's a Caribbean rum-based liqueur/syrup used in several tiki cocktails. According to CocktailDB, to simulate its flavour, mix orgeat syrup with vanilla. allspice, clove, ginger, Angostura bitters & lime juice.

What's oregeat syrup? Let's backup a little more. It's a sweet almond syrup used in tiki drinks and Italian sodas. The Mai Tai uses it.

The Cocktail Chronicles - Falernum #8

Is it the be-all and end-all of falernums? Of course not — rather, it’s an easy and cheap way to make a fairly obscure flavoring that’s essential in a class of exotic drinks. As it uses fresh ingredients, it has (to my palate) a better aroma and snappier flavor than the commercial brands I’ve tried. Of course, this freshness also limits its shelf life, so make small batches — this recipe may easily be halved — keep it refrigerated and use it within a month or so. Either chuck the old falernum or, better yet, just have a big swizzle party before your batch expires.