This is a classic variation on the Bijou cocktail. I was introduced to this cocktail by a regular denizen at Death & Co. in Manhattan. The following comes from their book, linked below. 1 1/2 oz. Gin 1 oz. Sweet Vermouth 1 oz. Green Chartreuse Orange bitters Campari Stir together gin, vermouth, chartreuse, and bitters in a mixing glass. Use the Campari to rinse the inside of the serving glass, discard extra. Garnish with a twist of lemon. See Photo (https://www.instagram.com/p/BCgy4jNINNH) Photo by Lisa Denkinger Death & Co. Book (http://www.amazon.com/Death-Co-Classic-Cocktails-Recipes/dp/1607745259/ref=tmm_hrd_swatch_0?_encoding=UTF8&qid=1457054030&sr=1-1)