5 blackberries, divided
1 oz (30 ml) Goslings Black Seal Rum
½ oz (15 ml) lime juice
½ oz (15 ml) simple syrup
3 oz (90 ml) Guinness Draught
- In a cocktail shaker with cubed ice, combine 3 blackberries with rum, lime juice and simple syrup. Shake vigorously, then fine strain into a rocks glass and top with Guinness. Add fresh cubed ice and garnish with remaining blackberries.