Basil is a herb. It is a leafy, fragrant annual with a bushy appearance. The most common type of basil is sweet basil. Other types are: purple basil (less sweetl), lemon basil (lemon flavor), and thai basil (licorice flavor). Basil is more and more used in cocktail recipes. It gives them a fresh taste. Send us your cocktail recipes with basil and we'll bring them online.