1/2 oz. fresh lime juice
1/2 oz. fresh grapefruit juice
1/2 oz. cinnamon syrup
1/2 oz. John D. Taylor's Velvet Falernum
1 oz. black blended rum
3/4 oz. blended aged rum
3/4 oz. black blended overproof rum
1 dash Herbstura
Garnish: None
Add all the ingredients to a drink mixer tin. Fill with 12 ounces of crushed ice and 4 to 6 small "agitator" cubes. Flash blend and open pour with gated finish into a double old-fashioned glass.