Aniseed is the fragrant seeds of a flowering plant native to the Eastern Mediterranean and Southwest Asia. It is sweet and aromatic, with distinct notes of licorice, fennel, and tarragon. It is a notable flavoring component of absinthe and other liquers and confections around the world.
In ancient Rome, it was customary to serve aniseed-spiced cakes as a digestif at the conclusion of feasts. It has been used historically to calm upset stomachs and aid in digestion.