Limoncello is an Italian liqueur that’s made by soaking lemon zest (i.e. yellow skin of a lemon, not the white pith underneath the flesh) in a neutral-flavored grain alcohol — typically vodka — for at least 1 month.
It has an ABV of around 28% to 32% and is vibrant yellow in color. Limoncello has a sweet, pronounced lemon flavor and a thicker consistency (almost like syrup!).
Limoncello can be sipped slowly on its own in a shot glass as an aperitif or after a meal as a dessert.