Well-known German doctor Bernard Funk was not only Robert Louis Stevenson's physician and friend, but was also the alleged inventor of an early version of this drink during his many years serving as a doctor to the people of Apia, Samoa.

Ingredients

• 0.5
  oz
  of Lemon juice
• 0.25
  oz
  of Grenadine syrup
• 0.5
  oz
  of Lime juice
• 0.5
  oz
  of Demerara / dark Muscovado sugar syrup (2 sugar to 1 water)
• 0.25
  oz
  of Herbstura
• 2.25
  oz
  of Dark (Black Blended) Rum
  (full flavored and funky)
• 1
  oz
  of Soda Water

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 double old-fashioned.
• Garnish with ti leaf or pineapple fronds.