This cocktail is as dark as the depths of the ocean, ideal for a pirate's taste. The combination of rum, coffee liqueur, and blackberry juice gives a rich and robust flavor that'll send you into a boozy blackout.

Ingredients:
- 2 oz dark rum
- 1 oz coffee liqueur
- 1 oz blackberry juice
- ½ oz fresh lime juice
- ½ oz simple syrup
- 1 dash of Angostura bitters

Directions:
1. Fill a shaker with ice.
2. Add all the ingredients.
3. Shake until chilled.
4. Strain into a glass filled with ice.
5. Garnish with a lime wedge and blackberries.
6. Enjoy your pirate-worthy drink!