Our easy-to-make Cosmopolitan recipe proves that you don’t have to be on TV to drink a Cosmopolitan. According to Gary Regan’s research, the original Cosmopolitan was created by a South Beach bartender named Cheryl Cook. Eager to invent a new cocktail for the Martini glass, Cook riffed on the classic Kamikaze using a newly introduced citrus-flavored vodka plus a splash of cranberry juice. But to be fair, there’s some debate about who created the original Cosmopolitan, whether it was Cook, Dale DeGroff (at New York City’s Rainbow Room) or Toby Cecchini, who devised a Cosmo in 1988 during his tenure at NYC’s Odeon. However, all agree that Cecchini popularized the vodka-and-cranberry ‘tini.