Combine first four ingredients in a mixing glass. Shake with ice and strain into a Collins glass filled with ice. Top with ginger beer and a heavy float of Angostura bitters.
All drink recipes within this site contain no more than 0.6 fl. oz. (14 grams) of alcohol per serving, equivalent to one standard U.S. drink. For more information on alcohol content, please visit http://www.drinkiq.com
