The Cosmopolitan, or Cosmo to its friends, has a hotly debated history. No one knows for sure how and when the martini variation was invented; some credit the New England coast as its birthplace, while others believe that similar variations were made by numerous independent bartenders in the 1970s, but one thing is for sure…there has been a surge in popularity of the drink since it was a staple on the HBO series Sex and the City. Since then, the Cosmopolitan has maintained a girly reputation, and considering it’s lovely pink hue, it’s not hard to see why. Different variations have different colors, but the Cosmopolitan doesn’t stop being pink at heart. To celebrate the Cosmo in all of its glory, here’s how to make a Cosmopolitan.