Gum Syrup (Gomme Syrup): The Elevated Simple Syrup

Liber & Co. Classic Gum SyrupWhat is gum syrup?
Gum syrup is a rich simple syrup (2:1 sugar:water) combined with gum Arabic, an all-natural resin harvested from the Acacia tree.

The gum, which is comprised primarily of fiber and protein, acts as an emulsifier in the syrup and ultimately in your cocktail. This means that all of the components of your beverage are uniformly blended, a characteristic that top bartenders have sought for over a century.

Whether in a classic stirred cocktail like an Old Fashioned, or in a shaken sour like the Daiquiri, gum syrup takes your favorite drink to new and elevated heights by adding weight and a silky mouthfeel. 

 

A quick History of gum syrup
Jerry Thomas’s canonical The Bartender’s Guide, was replete with the use of gum syrup in lieu of simple syrup as a tool in the advancement of the bartender toward a proud professional. Employing food chemistry and a more scientific approach to building great drinks led to simple syrup all but being replaced by its more sophisticated gum syrup brother.

Aside from its historical use in cocktails, gum syrup has versatile applications in non-alcoholic drinks and even baking. Here in the South gum syrup has found its way into the regional favorites, sweet iced tea and the Arnold Palmer. Across the Pacific, Japan has been on the gum syrup bandwagon for decades as its sweetener of choice in coffee, both iced and hot.

Of course, after using it in our morning Joe as a pick-me-up, the true nature of gum syrup shines after a long day at the office. Try these three classic, easy cocktails next time you’re thirsty:

 

The Mojito
The idea of a mojito is to release the essential oils of fresh mint leaves and disperse them throughout a carbonated highball. The natural emulsification properties of gum Arabic physically ensure that these oils are more uniformly distributed throughout your cocktail. This means that your last sip will be as rewarding as the first, a quality we all know doesn’t hold true at most bars.

Mojito Recipe
  • 2 oz. white rum
  • 3/4 oz. lime juice
  • 1/3 oz. Classic Gum Syrup
  • 5-6 fresh mint leaves
  • soda water/seltzer  

  • Lightly muddle the fresh mint leaves with the gum syrup. Add the lime juice, rum, and ice. Top with club soda, stir and garnish with a mint sprig.

    The Old Fashioned
    If the Old Fashioned wasn’t your grandpa’s favorite drink, it was his coolest friend’s favorite drink. A true staple whiskey cocktail, the Old Fashioned is simply three ingredients: whiskey (bourbon or rye), sugar, and bitters. Don’t let the simplicity of this build fool you; depending on the whiskey and bitters of choice, the flavor possibilities are virtually endless. That said, gum syrup is the requisite sweetener for anyone who takes their Old Fashioned seriously.

    Old Fashioned Recipe
    • 2 oz. whiskey
    • 1/4 oz. Classic Gum Syrup
    • 1-2 dashes aromatic bitters

    Coat the bottom of your rocks glass with Classic Gum Syrup and add bitters. Add cubed ice and whiskey. Stir well to incorporate (we shoot for ~25 full revolutions, or until the outside of the glass is frosty). Enjoy.

    Whiskey Sour
    The whiskey sour is, like most sours, a straightforward and acid-centric cocktail. Unlike the Old Fashioned, which seduces drinkers with its deep complexity and nuance, the whiskey sour highlights and amplifies the most accessible flavors of the whiskey. In this drink, the gum syrup marries the bright, fresh flavors of the lemon with the complexity of the whiskey in a way that simple syrup cannot.

    Whiskey Sour Recipe
    • 2 oz. whiskey
    • 3/4 oz. lemon juice
    • 1/3 oz. Classic Gum Syrup

    Combine ingredients in a cocktail shaker with abundant ice. Shake vigorously and strain into a chilled cocktail glass, or coupe.

    This preparation (served without ice) is termed “up”. One can also serve this drink over ice, or, “on the rocks”. It’s worth mentioning that many standard whiskey sour recipes call for the addition of egg white, though the gum Arabic in the Classic Gum Syrup largely replaces the need for the emulsifying properties of the egg.