Falafel they are not cooked prior to use (cooking the chickpeas will cause the falafel to fall apart, requiring adding some flour to use as a binder). Instead they are soaked (sometimes with baking soda) overnight, then ground together with various ingredients such as parsley, scallions, and garlic. Spices such as cumin and coriander are often added to the beans for added flavor. The dried fava beans are soaked in water and then stone ground with leek, parsley, green coriander, cumin and dry coriander. The mixture is shaped into balls or patties. This can be done by hand or with a
Coriander expressed a dislike for coriander, but among the groups where coriander is popular in their cuisine, only 7% of South Asians, 4% of Hispanics, and 3% of Middle Eastern subjects expressed a dislike. Studies have shown that 80% of identical twins shared the same preference for the herb, but fraternal twins agreed only about half the time, strongly suggesting a genetic component to the preference. In a genetic survey of nearly 30,000 people, two genetic variants linked to perception of coriander have been found, the most common of which is a gene involved in sensing smells. The gene, "OR6A2", lies