Fennel seeds are often confused with the more common cumin, anise and caraway seeds, but have a very different flavour profile. This spice, however, is very popular in a lot of cuisines, including but not limited to Indian, South East Asian, Middle Eastern, Mediterranean and Italian.
Fennel seeds, are an important part of spice mixes. Like all spices, fennel seeds benefit from dry roasting before use, especially if using them ground. In South Asia, they're chewed raw with sugar cubes to freshen the mouth and aid digestion after meals. Fennel seeds are also an important component of masala chai spices.