40ml Gold rum
10ml Passionfruit syrup
1 dash Angostura
10ml lime juice
Drill a hole in the eye of a coconut and empty out the milk. Mix this with the other ingredients and pour back into the coconut through a straw. Chill in the freezer for 1 hour, shake and then serve.
A quick solution to party hordes, pre-make loads of these coconuts in advance to slake their thirst quickly.