Tarkhun is an effervescent herbal cooler from Georgia. In the nation of Georgia, people sip fruity sodas in flavors like pear, orange cream, apple, raspberry and—most traditional of all—tarragon. Sweet-tart, with a mild licorice aroma, on a stomach-settling elixir called tarkhun. It was invented by a Georgian pharmacist in the 1880s and spread throughout the former Soviet republics. We first tasted tarkhun at a café specializing in kachapuri, Georgia’s boat-shaped, egg-topped cheese bread bowl; the sugary soda was the perfect complement.