1/2 tsp of black Sambuca (or elderberry liqueur)
1 tsp of galliano herbal liqueur (or Herbal Liqueur)
1 splash of Creme de Myrtille
1 splash of strega herbal liqueur (or Herbal Liqueur)
1 1/2 oz of Gin
Stir and strain all but blueberry liqueur into glass, then dribble blueberry liqueur over top.