This follows the classic rhyming formula, one of sour, two of sweet, three of strong, four of weak (weak being juices, or in our case, ice). We add two of the most popular ingredients in Jamaica (allspice, Angostura bitters) to round it out and give it depth.

Ingredients

• 1
  oz
  of Lime juice
• 0.75
  oz
  of Demerara / dark Muscovado sugar syrup (2 sugar to 1 water)
• 0.25
  oz
  of Allspice (Pimento) dram liqueur
• 3
  oz
  of Blended Aged Rum
• 2
  dash
  of Angostura Aromatic Bitters

Steps

• Combine all the ingredients except the overproof rum in a drink mixer tin.
• Fill with 12 ounces of crushed ice and 4-6 small "agitator cubes".
• Flash blend and then open pour with a gated finish into a Collins or highball glass.
• Garnish with mint sprig.