The official Dark 'n' Stormy uses only Gosling's black rum. If you don't have Goslings, use a dark rum.
- 1/4 lime, cut into two thick slices, one for garnish, one to squeeze over the ice (optional)
- 2 ounces Gosling’s Black Seal Bermuda black rum
- 4 ounces ginger beer (Gosling's makes one just for this purpose)
Fill a tall glass (preferably a highball glass) with ice. If using lime, squeeze a slice over the ice. Add the ginger beer. Top the ginger beer with the rum (for effect) and place a slice of lime on the rim of the glass for a garnish.