Oritang is a variety of guk

Guk

Guk , also sometimes known as Tang , is a class of soup-like dishes in Korean cuisine. Guk and tang are commonly grouped together and regarded as the same type of dish, although guk is more watery and a basic dish for the Korean table setting, and is usually eaten at home...

, Korean soup or stew made by slowly simmering duck

Duck

Duck is the common name for a large number of species in the Anatidae family of birds, which also includes swans and geese. The ducks are divided among several subfamilies in the Anatidae family; they do not represent a monophyletic group but a form taxon, since swans and geese are not considered...

 and various vegetables. Ori means "duck" and tang is another name for guk in Korean

Korean language

Korean is the official language of the country Korea, in both South and North. It is also one of the two official languages in the Yanbian Korean Autonomous Prefecture in People's Republic of China. There are about 78 million Korean speakers worldwide. In the 15th century, a national writing...

. While its recipe depends on region and taste, the soup is generally in a form of a clear soup. Some variants can contain chili pepper

Chili pepper

Chili pepper is the fruit of plants from the genus Capsicum, members of the nightshade family, Solanaceae. The term in British English and in Australia, New Zealand, India, Malaysia and other Asian countries is just chilli without pepper.Chili peppers originated in the Americas...

 powder to make the soup spicy like maeuntang (spicy fish soup) or roasted perilla seeds to thicken the dish. Oritang is a local specialty of Gyeonggi Province and South Jeolla Province, especially Gwangju City

Gwangju

Gwangju is the sixth largest city in South Korea. It is a designated metropolitan city under the direct control of the central government's Home Minister...

. In Gwangju, about 20 restaurants specializing in oritang and other duck dishes are centered on Yudong Alley in Buk-gu (Northern District).