What is a cumquait?

A kumquat is a small citrus fruit that belongs to the Fortunella genus. It is typically oval or round in shape and has a sweet, edible skin with a tart interior. Unlike most citrus fruits, kumquats can be eaten whole, including the skin, and are often used in salads, preserves, and beverages. They are rich in vitamin C and have a unique flavor profile that combines sweetness and tartness.