Aperol is an orange-based liqueur that is popular in Italy. It has a bitter, citrusy flavor and is often used in mixed drinks. Aperol is not as sweet as other orange liqueurs, making it a good choice for those who prefer a drier drink. Aperol is typically served with prosecco, soda water, and a slice of orange. It can also be utilized in cocktails such as the Aperol Spritz (prosecco, Aperol, soda water) or the Negroni (gin, Campari, sweet vermouth).