Triple Sec is a type of orange-flavored liqueur that is commonly used in cocktails. It is made from the dried peels of bitter and sweet oranges, giving it a distinct citrus flavor. The name "Triple Sec" refers to the triple distillation process used to create the liqueur, which enhances its purity and flavor. This liqueur typically has an alcohol content ranging from 15% to 40% by volume. Triple Sec is a key ingredient in many popular cocktails, such as the Margarita and the Cosmopolitan, adding sweetness and a zesty orange note to drinks.