1/2 oz of Vodka
1/2 oz of Gin
1/2 oz of Lemon Juice
1/2 oz of green chartreuse (or chartreuse)
4 oz of soda water
1/2 tsp of caster sugar (or sugar)
1/2 oz of benedictine herbal liqueur
1/2 oz of yellow chartreuse (or chartreuse)
Dissolve sugar, shake and strain into a highball glass half-filled with ice. Add soda, straws and a muddler, and serve.