Falernum (pronounced Fah-learn-um) is a sweet syrup used in Caribbean and tropical drinks. It contains a wide range of flavours, including almond, chilli, ginger, cloves and lime, all perfectly balanced. It is used in cocktails in a manner like Orgeat syrup ro can be drunk neat on the rocks.
Some reports have the origination of Falernum dating back to the 18th century. In the literary magazine, All the Year Round, owned by Charles Dickens, an unnamed author wrote of Falernum in 1892, describing it as a 'curious liqueur composed from rum and lime juice'. The earliest know reference in bar manuals seem to be in the 1930's.