Ah, the inexperienced elixir on the coronary heart of Final Phrases and Bijous and swizzles, a liqueur beloved the world over and crafted by devoted monks for hundreds of years. How versatile. How singular. I’m not speaking about Chartreuse, by the best way.

Whereas bartenders have been stricken by Chartreuse provide points and trying to find alternate options from new upstarts (or making their very own), one liqueur has quietly been ready within the wings. Dutch-born Boomsma Claerkampster Cloosterbitter is simply as pedigreed—it’s been round because the 1400s—and as nuanced in taste, albeit milder and decrease in ABV.

For Alec Bales, lead bartender at Atlanta’s Ticonderoga Membership, that lighter contact makes Cloosterbitter his most popular liqueur for a Final Phrase—no matter Chartreuse’s availability. “I want a lower-proof natural liqueur to inexperienced Chartreuse,” he says, “as a result of I like the steadiness it brings with Fords Gin,” his most popular model for the traditional. He additionally makes use of it in a Bijou.

Other than the classics, it’s also possible to discover Cloosterbitter in a mezcal- and Midori-fueled bitter at Echoes in Houston, a swizzle at Otto’s Excessive Dive in Orlando and a spicy, minty drink at La Josie in Chicago. Bars throughout the nation have joined the fandom. And why not? For round $30—lower than half the worth of Chartreuse nowadays—it’s a minimum of value a shot.