Anise was cultivated by ancient Egyptians and has been in use in America since the 14th century, according to Botanical.com. Known as Pimpinella anisum, anise is harvested for its seeds, from which anise oil is extracted. It possesses a taste reminiscent of licorice, and anise oils are often used in licorice candy. You can substitute anise extract for anise seed in recipes but be aware that it's not a 1:1 substitution.
Refer to the recipe for the exact quantity of anise seed needed.
Measure 1 tsp. of anise extract for every 1.5 tsp. of ground anise seed the recipe requires. For instance, if the recipe calls for 3 tsp. of ground anise seed, substitute 2 tsp. of anise extract.
Add the anise extract to the other ingredients in the recipe instead of the anise seed.