Dark n Stormy

• 2 oz. dark rum
• 3 oz. ginger beer
• ½ oz. lime juice
• a dash angostura bitters
• 1 wedge lime
• ½ cup ice

Pour the ice into a glass then add the dark rum, lime juice and angostura bitters.
Top the glass up with ginger beer. 
Serve garnished with a wedge of lime.