On The Rocks Cosmopolitan

On The Rocks The Cosmopolitan SIZE: 375ML The On The Rocks The Cosmopolitan is a simple cocktail with a big history. Often referred to as ‘the cosmo,’ it was invented in the late 20th century, but like a good pair of blue jeans, did not truly become iconic until the 1990s when it was made famous by Sex and the City. To this day, the martini-style drink is a favorite at bars across the country.