Gabriel Boudier Kaffir Lime Leaf Liqueur 50cl

Gabriel Boudier threw down the gauntlet to bartenders last year to come up with a new liqueur for their range. Samuel Boulton was the winner and this is what he created. Based on the makrut lime with a fragrance of lemon grass.

Samuel has created a range of serves for this liqueur with the simplest being with tonic. What can you come up with?