Heera Soonf (Fennel Seeds) have a sweet, licorice-like flavor and a pleasant aroma.Dry roasting the seeds can greatly enhance their flavor. In many cultures, fennel seeds are used as a mouth freshener and a digestive aid after meals.They are a versatile spice used in a wide range of cuisines, from European sausages to Indian spice blends like Panch Puran and Chinese Five Spice.