Limoncello is a popular Italian liqueur that originated in Sicilia. It is made by steeping lemon zest in alcohol and then adding sugar syrup. The result is a bright yellow liqueur with a sweet and tangy lemon flavor. Limoncello is often served chilled as a digestif after a meal or used as an ingredient in cocktails and desserts. Its refreshing taste and vibrant color make it a beloved Sicilian drink.