Named for their resemblance to dates, kumquats are actually a citrus fruit and are formally known as “golden tangerines.” Yilan is the main production area of kumquats, which are circular or elliptic, golden brown, and roughly the size of a human thumb. Both the flesh and the skin can be eaten, and the skin, which is bittersweet, can soothe the throat, produce saliva, quench thirst, and facilitate digestion. It also can be made into a sweetmeat, which has become a very popular snack.