Made with an Old Tom gin with amplified botanicals and minimal sugar (some are way too sweet), this is a spirituous and, if you hit the right dilution...
A truly fantastic cocktail; simple but of course unforgettably and reliably complex due to the Chartreuse. I first learnt of this on a visit to the Chartreuse shop/museum/bar in Voiron, France last year when given their recipe leaflet by the bartender. They go 40 gin, 20 yellow Chartreuse and one dash of Angostura with a lemon garnish. I've found 40/12 and one dash of regular and orange Angostura works best for my taste. I urge anyone in France to visit the Chartreuse HQ - a treat to behold.