What is Green Chartreuse?

Green Chartreuse (Chartreuse Verte) is a French herbal liqueur produced under the control of the Carthusian order from a secret formula of some 130 plants, barks, roots, and spices. Neutral spirit is infused and distilled; the color is natural. It is bottled at 55% ABV. It is a liqueur — it is sweetened — but at that strength it behaves in a cocktail more like a high-proof modifier than like a cordial.

Yellow Chartreuse is the related, milder expression: lower proof, sweeter, more honeyed. The two are not one-for-one substitutes. Green Chartreuse is the bottle specified in the Last Word.

Alpine herbs, mint, sugar, and heat. Green Chartreuse is sweeter on the palate than its aroma suggests, and stronger than its liqueur classification implies. A quarter-ounce too much will bury gin and citrus under chlorophyll and alcohol.

Yellow Chartreuse is honeyed, lower in proof, and less aggressive. Tasting them side by side is the fastest way to understand why Last Word specifications name the green.

A manuscript recipe for an elixir is traditionally dated to 1605, when the Maréchal d’Estrées is said to have given it to the Carthusians. The monks at the Grande Chartreuse developed commercial liqueurs in the eighteenth century; the green liqueur became a stable product in the nineteenth. Distillation has long been associated with Voiron; production later moved to a facility at Aiguenoire while the monks retain control of the formula.

The Last Word — equal parts gin, green Chartreuse, maraschino liqueur, and lime juice — is documented at the Detroit Athletic Club in the 1920s and was revived in the early 2000s by Murray Stenson at the Zig Zag Café in Seattle. That revival, more than digestif service, returned the bottle to cocktail lists.

The Last Word is equal parts, shaken, and strained up. Elsewhere, start with a teaspoon to a quarter-ounce; herbal volume grows quickly. Yellow Chartreuse in a Last Word yields a sweeter, softer, lower-proof drink. That is a variant, not the original.

Store upright, away from light. High proof preserves it. Chartreuse continues to evolve slowly in the bottle; that aging is a known property of the liqueur, not spoilage. Do not free-pour.