Cora Middleton

Glassware: Chilled coupe

2 tsp. egg white
2 oz. blended aged rum
3/4 oz. fresh lime juice
1/4 oz. demerara syrup
1/2 oz. Small Hand Foods Raspberry Gum Syrup

Garnish: 1 dash Angostura bitters

Combine the egg white and rum in a drink mixer tin and dry flash without ice for 10 seconds. Transfer contents to a cocktail shaker and add the remaining ingredients, then shake with cracked or cubed ice. Double-strain into a chilled coupe. Drop 1 dash of bitters on top of the surface of the drink for garnish.

Source: The South American Gentleman's Companion