Limoncello is a traditional Italian liqueur that is made from lemon zest, alcohol, water, and sugar. It is a popular digestif drink in Rome and other parts of Italy. Limoncello has a bright and tangy flavor, with a sweet and refreshing taste. It is typically served chilled in small glasses and is often enjoyed after a meal to aid digestion. The drink is also sometimes used as an ingredient in cocktails or as a topping for desserts. The vibrant yellow color of limoncello adds to its appeal and makes it a popular souvenir for visitors to bring back home.