Wikipedia
Galbitang (; also spelled as kalbi tang) is a variety of guk, or Korean soup, made primarily from beef short ribs along with stewing beef, daikon, onions, and other ingredients. The short ribs, or " galbi" also refers to grilled short ribs in Korean barbecue while the suffix tang is another name for guk. Hence, the Korean name literally means "short ribs soup" and is also called garitang, or galitang. The clear and hearty soup is made by slowly simmering galbi in water for a long time and is eaten as a meal. It is similar to seolleongtang, a soup made from the bones of ox legs.
Historical records on galbitang are found in records on table setting for Korean royal court banquets held in the 1890s. However, galbi was assumed to have been eaten since the end of the Goryeo Dynasty (918 – 1392).
Galbitang has been a representative dish served at wedding receptions.