The Cosmopolitan is a popular cocktail that gained fame in the 1990s. It is made by mixing vodka, cranberry juice, lime juice, and triple sec, and garnishing it with a lime twist. This secret recipe elevates the Cosmopolitan by using a premium vodka, freshly squeezed cranberry juice, and a homemade triple sec, resulting in a more vibrant and sophisticated taste. The addition of a secret ingredient adds a subtle twist to this modern classic.