Korean Oxtail Soup
Quick answer
Sokori-guk demands patience - oxtail pieces are soaked in cold water to draw out blood, then placed in a heavy pot with enough water to cover and simmered for at least th...
What makes this special
- Only salt and pepper seasoning lets the bone's collagen liquid shine.
- 3+ hours of simmering yields broth that sets like jelly when chilled
- Chewy tendon contrasts with meat that pulls apart along the grain
Key ingredients
Core cooking flow
- 1 Soak 1200 g oxtail in cold water for 1 hour to draw out blood.
- 2 Blanch the oxtail in boiling water for 7 minutes.
- 3 Put the cleaned oxtail and 3200 ml fresh water in a heavy pot and bring it to a boil over high heat.
Sokori-guk demands patience - oxtail pieces are soaked in cold water to draw out blood, then placed in a heavy pot with enough water to cover and simmered for at least three to four hours. During that long, slow cook, collagen buried in the joints and connective tissue dissolves into the liquid, producing a broth so rich in gelatin that it sets into a solid block when refrigerated. Skimming fat and foam at regular intervals keeps the final broth a clean, milky white with no greasy residue. The meat, once it slides easily off the bone, is torn along the grain into shreds that are impossibly soft, while the tendon segments offer a pleasantly bouncy chew. Seasoning is deliberately minimal - coarse salt, black pepper, and sliced scallion - because the bones themselves have already contributed all the depth the soup needs. Served with a bowl of steamed rice and a side of kkakdugi, the cubed radish kimchi's sharp tang provides the only counterpoint this quietly powerful broth requires.
Instructions
Read the steps as a cooking flow: prep, heat, seasoning, doneness control, and finish.
- 1Finish
Soak 1200 g oxtail in cold water for 1 hour to draw out blood.
Change the water once halfway through if it looks very red, which helps keep the finished broth cleaner.
- 2Heat
Blanch the oxtail in boiling water for 7 minutes.
Drain it, then rinse each piece under running water, rubbing away gray foam, bone dust, and any clinging impurities from the surface.
- 3Control
Put the cleaned oxtail and 3200 ml fresh water in a heavy pot and bring it to a boil over high heat.
Once it boils, skim foam thoroughly and lower to medium heat.
- 4Control
Add 250 g Korean radish, 1 onion, 10 garlic cloves, and 1 green onion.
Simmer gently over low heat for 3 hours, skimming fat whenever it gathers so the broth stays milky but not greasy.
- 5Prep
When the meat slips easily from the bone, lift out the solids.
Shred the meat along the grain so it stays tender, and cut the radish into bite size pieces before returning them.
- 6Finish
Return the shredded meat and radish to the broth, then season with 1 teaspoon salt.
Add black pepper and extra green onion if desired, reheat until steaming, and serve hot with rice or kkakdugi.
After the steps
Pick a recipe that fits this dish.
Continue with shared ingredients, meal pairings, or a similar method.
Recipes That Go Well With This
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Korean Braised Oxtail (Soy Collagen Radish Braise)
Kkori-jjim is a Korean braised oxtail dish that begins with an extended soak in cold water to purge blood, followed by a preliminary boil to clean the joints before the main braise. The oxtail pieces go into a pot with soy sauce, sugar, minced garlic, ginger, and rice wine and cook low and slow for two hours or longer. The collagen concentrated in the tail joints breaks down gradually over that time, turning the braising liquid thick, glossy, and deeply gelatinous while the meat loosens away from bone without resistance. Korean radish and carrot cook alongside the meat, contributing natural sweetness and becoming saturated with the savory-sweet sauce. Jujubes and ginkgo nuts lend an herbal nuance and a subtle sweetness that distinguishes this dish from simpler braises. When chilled, the sauce sets into a firm jelly that liquefies again on reheating. The dish appears regularly on Korean holiday tables and is considered restorative food, valued for its concentrated beef flavor and the characteristic springy pull of slow-cooked collagen.
Korean Beef Trotter Soup (Silky Collagen-Rich Slow-Cooked Broth)
Ujok-tang is a slow-cooked Korean soup made from beef trotters, prized for the extraordinary amount of collagen packed into the bones, tendons, and skin of the cut. The trotters are first soaked for hours in cold water to purge blood and any off-flavors, then placed in a deep pot and simmered at a gentle roll for four to six hours. During that time, the collagen gradually dissolves into the cooking liquid, transforming it from plain water into a milky, opaque broth with a viscous body that coats the spoon and sets firm when chilled. Regular skimming of fat and foam throughout the process ensures the final broth tastes clean rather than greasy. The trotter meat itself falls into two distinct textures: the skin and tendons turn gelatinous and springy, offering a bouncy chew, while the small pockets of muscle between the bones are meltingly soft. Traditional seasoning is limited to coarse salt and freshly ground pepper, allowing the broth's natural richness to speak. A dab of hot mustard or a spoonful of salted shrimp paste on the side provides a sharp contrast that keeps each mouthful interesting. Ujok-tang has long been regarded as a restorative food, particularly valued for its supposed benefits to joints and skin.
Korean Blue Crab Doenjang Pot Rice
Cleaned blue crab sits atop soaked rice in a heavy pot, cooked in anchovy-kelp stock that has been infused with dissolved doenjang. Garlic and vegetables are sauteed first in perilla oil to build an aromatic base before the stock-doenjang mixture is poured in and brought to a boil. The crab goes on top and the pot is covered for five minutes on high heat, fifteen minutes on low, then ten minutes off the heat to rest and steam through. The crab's briny sweetness and the doenjang's fermented, earthy depth soak into every grain of rice during the long, slow cook. Zucchini and shiitake mushrooms add a mild sweetness that tempers the saltiness and rounds out the bowl. One additional minute on low heat after resting creates a golden, nutty nurungji crust at the bottom, a prized texture in Korean pot rice. Doenjang saltiness varies by brand, so tasting the diluted stock before adding rice lets you calibrate without oversalting. A few slices of cheongyang chili on top cut through the fermented richness and add a sharp finishing heat.
Kimchi Soegogi-guk (Fermented Kimchi Beef Soup)
Kimchi-soegogi-guk is a Korean soup that unites two powerhouse ingredients, well-fermented kimchi and beef, in a ruddy, aromatic broth. The beef is stir-fried in sesame oil first, building a savory foundation, then chopped kimchi joins the pan and cooks until its acidity mellows and merges with the rendered fat. Water is added, and as the pot simmers, the kimchi continues to break down, thickening the liquid and staining it a deep red. Soup soy sauce and garlic adjust the seasoning, while blocks of tofu absorb the surrounding flavors and provide a soft counterpoint to the chewy beef. The finished soup is hearty and warming, with the tangy complexity of aged kimchi meeting the clean savoriness of beef in every spoonful. It pairs inseparably with a bowl of steamed rice, which soaks up the broth and balances the heat.
Serve with this
Korean Mushroom Japchae (Shiitake Glass Noodle Stir-Fry)
Beoseot japchae replaces beef with shiitake mushrooms as the primary source of savory depth, making it a staple of Buddhist temple cuisine and vegetarian tables alike. Sweet potato noodles are soaked and boiled, then rinsed in cold water immediately to lock in a firm, springy texture. Shiitake, spinach, carrot, and onion are each cooked separately - their moisture levels and heat tolerances differ enough that combining them prematurely flattens every component. Soy sauce, sugar, minced garlic, and sesame oil bring the noodles and vegetables together, and the finished dish rests for ten minutes so the seasoning penetrates the noodles evenly. The result is a japchae where the mushroom carries genuine umami weight without any meat.
Korean Chive Clam Jeon (Garlic Chive and Clam Seafood Pancake)
Buchu-bajirak-jeon is a seafood pancake of garlic chives and clam meat, pan-fried in a batter made with a mix of all-purpose pancake flour and rice flour. The rice flour addition increases the chew and gives the finished jeon a slightly more resilient texture than plain flour batters. Clam meat releases a briny, oceanic liquid as it cooks that seeps into the batter and flavors it throughout, while the chives add a sharp, grassy counterpoint. Minced garlic and diagonally sliced cheongyang chili worked into the batter suppress any fishiness and build a layered fragrance. A generous amount of oil in the pan over medium heat produces edges that crisp and brown like the outside of a fritter. Waiting until the bottom is fully set before flipping prevents the pancake from tearing. Served with soy dipping sauce or a seasoned soy mixture, the clean salinity of the clams comes through clearly.
Korean Cabbage Kimchi (Crunchy Green Cabbage Kimchi)
Yangbaechu kimchi is a Korean cabbage kimchi made by salting green cabbage and tossing it with chili flakes, fish sauce, and minced garlic. The thicker leaves and lower moisture content of green cabbage compared to napa cabbage result in a noticeably crunchier texture that persists through fermentation. The natural sweetness of cabbage softens the heat from the chili seasoning, while carrot and scallion pieces add color and freshness. Six hours of fermentation at room temperature followed by refrigeration lets the tanginess develop gradually. It serves as a lighter alternative when traditional napa kimchi feels too heavy.
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