The azuki bean is a type of reddish-brown colored bean. It can also be spelled adzuki. The bean is grown in East Asia and the Himalayas. It is often boiled in sugar to make a red bean paste. This paste is used in Chinese, Korean, and Japanese cooking.Azuki beans are eaten in many places in the world. Especially, azuki beans are used in sweet meals, snacks and dishes in Japan, China, Korea and Vietnam. Azuki beans have a long and varied history and there are many recipes.