Gomtang (Beef Bone and Brisket Soup)

The name comes from the verb goda, to boil meat or bones down until they give up their essence. The noun form is goeum or gom, and the soup was called goeum-guk or gomguk before gomtang became the common word. Two entries in the Encyclopedia of Korean Folk Culture trace this lineage. The 1795 royal procession record Wonhaeng eulmyo jeongni uigwe describes goeum broths of tripe, abalone, mussels or old hen served beside thin rice gruels for Lady Hyegyeong, King Jeongjo's mother. The late-nineteenth-century cookbook Siuijeonseo lists leg bones, shank, knuckle, tail, tripe, abalone and sea cucumber simmered together with plenty of water in a large cauldron to make a thick, white soup.

By the end of the 1800s, the entry says, gomtang had come to mean gomguk served over rice in restaurants, and eateries specializing in rice in soup were called gukbap houses. The usual raw material was ox head, offal and bones. A 1909 illustration, Joseon manhwa, shows an ox head on display outside such a shop. In English, the Korea Tourism Organization considers "beef bone soup" the correct translation, and a Korea Times report on English-menu errors judged the common label "oxtail soup" not entirely wrong, since tail bones are often used, but inaccurate for the dish in general.

Sources disagree about where gomtang ends and seolleongtang begins. A Michelin Guide feature describes gomtang as cooked from lean cuts such as brisket (yangji) and shank (satae) without bones, in contrast to the bone-built, milky seolleongtang. A folk-encyclopedia entry on the dish says it is made mostly from lean meat and offal but that leg, knuckle and tail bones are often added. The Michelin piece also notes that gomtang appears in Joseon-era cookbooks as a noble dish served at the royal table, and that it spread nationwide after the Korean War.

• Protein, zinc and B12: by the MFDS analysis a 600 g bowl provides about 21 g of protein, plus selenium, zinc and vitamin B12 from the beef.
• Modest calories before rice: the analyzed bowl has about 145 kcal without rice, so the dish can anchor a balanced meal; see the balanced Korean meal.
• Traditional reputation: the folk encyclopedia describes gomtang as a restorative (boyang) food, eaten for energy in winter and to get through hot summer nights. That is cultural belief rather than a clinical claim.

• Naju (South Jeolla): a clear, light broth built mainly on beef; see Naju gomtang.
• Hyeonpung (Daegu) and Masan: the Michelin feature describes these as milky, richer styles that add bones, including oxtail and shank bones, to the pot.
• Seoul and the capital region: older Seoul soups, per the folk encyclopedia, drew on ox head, bones, hide and feet; the modern milky version overlaps with seolleongtang.
• Spin-offs: the folk encyclopedia notes that sagol-gomtang (leg bone), kkori-gomtang (oxtail) and yang-gomtang (first stomach) derive from the same idea of adding particular cuts.
• Cuts used: lean cuts are mainly brisket and shank; offal can include first stomach (yang), small intestine (gopchang), lung and gonjasoni, a fatty part near the end of the intestine.