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Kkori-gomtang (Oxtail Soup)

Kkori-gomtang (Oxtail Soup)

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Oxtail simmered slowly until the broth turns pale and rich, served plain with scallion, salt, pepper, and rice so the meat and bones can speak clearly.

Soups & Stews
Korean
Comfort Food
Make Ahead
Special Occasion
35 min
Active Time
4 hr 30 min cook13 hr 5 min total
Yield4 to 6 servings

Kkori-gomtang lives or dies before the long simmer begins. Blanch the oxtail hard, wash the bones clean, and change the water. Skip that and you don't get a clean broth, you get a cloudy pot with a tired smell. The time is long, but the work is plain.

My teacher made this for students who looked thin after exam season. She did not sweeten it, darken it with soy sauce, or crowd it with vegetables. Oxtail, water, a little radish if the season is cold, and enough patience for the joints to loosen. The seasoning waits until the bowl, because each person needs a different hand with salt.

I won't tell you this is quick. It asks for a blanch, a rinse, four hours of simmering, and preferably a night in the refrigerator so you can lift away the fat. That is the honest schedule. What you receive back is a pot that feeds several meals and gets deeper each time. 손맛 is real. I still measure it, so it can be handed on.

Gomtang and gomguk belong to Korea's long-simmered beef soup family, made by drawing nourishment from meat, bones, and tough cuts at a time when cattle were valuable working animals and no part was treated carelessly. Kkori-gomtang, using the tail joints, became especially suited to modern butcher shops and home freezers because oxtail could be cut cleanly across the bone and simmered until collagen gave the broth body. It is not a palace dish dressed for ceremony, but a household and restaurant soup of patience, served with salt and scallion so the broth stays itself.

The technique, the tradition, and the story behind every dish.

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Ingredients

oxtail

Quantity

1.5kg

cut across the bone into 2-inch pieces

cold water

Quantity

as needed

for soaking and blanching

water

Quantity

14 cups

for the main broth

Korean radish (mu)

Quantity

250g

peeled and cut into 2 large chunks

onion

Quantity

1/2 large

peeled

garlic cloves

Quantity

6

lightly crushed

fresh ginger

Quantity

2 slices, each about 1/4 inch thick

large scallion whites

Quantity

2

cut into 3-inch lengths

kosher salt

Quantity

2 teaspoons, plus more for serving

freshly ground black pepper

Quantity

1/2 teaspoon, plus more for serving

scallions

Quantity

3

thinly sliced, for serving

cooked short-grain rice (optional)

Quantity

to serve

kkakdugi (cubed radish kimchi) (optional)

Quantity

to serve

Equipment Needed

  • Large heavy stockpot, 8-quart or larger
  • Large colander
  • Fine skimmer or ladle
  • Storage container for chilling and defatting

Instructions

  1. 1

    Soak the oxtail

    Put the oxtail in a large bowl and cover with cold water by 2 inches. Soak 1 hour, changing the water once halfway through. This draws out excess blood so the broth tastes clean instead of muddy. If your oxtail is very fresh and pale, 30 minutes is enough.

    Do not soak overnight. The meat loses flavor into the water, and you need that flavor in the pot.
  2. 2

    Blanch hard

    Drain the oxtail and put it in a large pot. Cover with fresh cold water by 2 inches and bring to a full boil over high heat. Boil hard for 7 minutes. The foam and gray scum that rise now are not broth, they are what you are removing.

  3. 3

    Wash the bones

    Drain the oxtail into a colander and rinse each piece under warm running water, rubbing away any dark clots around the bone. Wash the pot too. This is the step that separates a clean kkori-gomtang from a careless one, and there is no shortcut for it.

  4. 4

    Start the broth

    Return the clean oxtail to the clean pot with 14 cups water. Bring to a boil, then lower to a steady gentle simmer. Skim the surface for the first 20 minutes. Keep the lid slightly open so the broth reduces slowly and does not boil itself cloudy in the wrong way.

  5. 5

    Add aromatics

    After the first 20 minutes of skimming, add the radish, onion, garlic, ginger, and scallion whites. Simmer gently for 2 hours. The radish sweetens the broth and gives you a clean vegetable note, but it should not take over. If it softens early, lift it out and save it for serving.

  6. 6

    Simmer until tender

    Remove and discard the onion, ginger, and scallion whites. Keep simmering the oxtail 1 1/2 to 2 hours more, until the meat yields when pressed with chopsticks and starts to loosen from the joints. Add hot water if the bones are no longer covered. Cold water shocks the simmer down; hot water keeps the broth moving.

  7. 7

    Season lightly

    Stir in 2 teaspoons kosher salt and 1/2 teaspoon black pepper. This is not the final seasoning. It is only enough to wake the broth before serving, because kkori-gomtang is finished at the table with salt, pepper, and scallion to each person's taste.

  8. 8

    Chill and defat

    For the cleanest soup, cool the pot, then refrigerate it 6 hours or overnight. Lift off the firm fat cap before reheating. You may serve it the same day, but chilling lets you remove fat without stealing broth, and the flavor settles into itself.

  9. 9

    Reheat and serve

    Reheat the soup gently until the broth is fully hot and the meat is tender again. Slice the cooked radish into thick pieces and return it to the pot if using. Serve each bowl with oxtail, broth, sliced scallion, extra salt, black pepper, rice, and kkakdugi. The soup should taste rich but restrained, with the salt sharpening the beef rather than covering it.

Chef Tips

  • Choose oxtail pieces with meat around the bone and a little fat, not bare bone. The collagen in the joints gives body, but meat gives the broth sweetness. You need both.
  • A pressure cooker is an honest modern vessel here. After blanching and washing, cook the oxtail with 10 cups water at high pressure for 55 minutes, natural release 20 minutes, then simmer uncovered 30 minutes with the aromatics. The safe corner to cut is time, not the blanching and washing.
  • Do not season the whole pot heavily. Kkori-gomtang belongs to the family of soups finished at the table, so keep the base restrained and let each bowl take scallion, salt, and pepper.
  • The broth may look pale ivory rather than restaurant-white. That is fine. Some shops boil bones hard for a milkier look, but at home I prefer a steady simmer and a clean taste.

Advance Preparation

  • Make the soup 1 day ahead if you can. Overnight chilling lets the fat lift off cleanly and gives the broth a rounder taste.
  • Cooked oxtail and broth keep 4 days refrigerated. Reheat only what you plan to serve, because repeated boiling makes the meat stringy.
  • For longer storage, freeze broth and oxtail together in meal-size containers for up to 2 months. Thaw overnight in the refrigerator and reheat gently.

Frequently Asked Questions

Nutrition Information

1 serving (about 740g)

Calories
470 calories
Total Fat
14 g
Saturated Fat
5 g
Trans Fat
0 g
Unsaturated Fat
8 g
Cholesterol
85 mg
Sodium
1350 mg
Total Carbohydrates
50 g
Dietary Fiber
3 g
Sugars
3 g
Protein
34 g

Note: Chef personas and recipes are created with AI assistance. Cook with care: follow safe food-handling practices, check doneness with a thermometer when needed, and adapt for allergies and your kitchen.

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