Cooking in
Smithers
Korean
Seolleongtang — 24-Hour Ox Bone Extraction (설렁탕)
Seolleongtang (설렁탕) is one of Korea's oldest bone-based soups — a milky-white, deeply gelatinous broth produced by simmering ox leg bones (사골, sagol), brisket, and trotters in plain water for 24 hours or longer, until the collagen fully hydrolyses and the fat emulsifies into the broth, creating its characteristic opaque white colour and silky mouthfeel. The entire flavour comes from the bones — no aromatics, no soy sauce, no sesame. It is a Korean practitioner's supremely minimalist achievement: converting the most humble raw materials into a deeply satisfying broth through time and heat alone.
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Four not yet within reach.
How the 4 are reached
- Not yet within reach
- 4 · ox leg bones (사골, sagol), ox trotters, green onions (파), kkakdugi (깍두기, cubed radish kimchi)
I
The Market List
The benchmark for each ingredient, and who stocks it near you. Tap a stockist to go straight to the product.
2 kg
ox leg bones (사골, sagol)
cut into segments
Not yet within reach of Smithers · each reach is counted
500 g
beef brisket
whole piece
Your own market
500 g
ox trotters
halved or quartered
Not yet within reach of Smithers · each reach is counted
4 litres
cold water
plus additional for pre-soak and initial boil
Your own market
At the table
1 tsp
fine salt
per diner, to taste
Your own market
1 pinch
ground white pepper
per diner, to taste
Your own market
2
green onions (파)
finely chopped
Not yet within reach of Smithers · each reach is counted
200 g
cooked short-grain rice
served in the bowl or separately
Your own market
Alongside
200 g
kkakdugi (깍두기, cubed radish kimchi)
served in a separate dish
Origin · KoreaNot yet within reach of Smithers · each reach is counted
Within reach counts in town, delivered, shipped and the nearest city. A staple counts once it has a local seller. Charted from each shop's own pages; not yet vouched by a cook who shops here.
The larder of Smithers →II
The Method
1
Place the ox leg bones, brisket, and trotters in a large vessel, cover generously with cold water, and soak for 1–3 hours, changing the water twice, so that blood and haemoglobin are drawn out of the bone cavities rather than left to cloud and darken the finished broth. The water runs noticeably paler at the end of each change. By the final change it should be only faintly pink.
2
Drain and transfer all bones and meat to the largest stockpot available, cover with fresh cold water, and bring to a vigorous boil over high heat. Boil hard for 10 minutes, then drain and discard this first water entirely, rinsing the bones and pot under running water to remove any adhering grey proteins — because any residue left clinging to the bones at this stage will turn the long-cooked broth bitter and dull. The bones should look clean and pale before you proceed.
3
Return the cleaned bones and meat to the pot, add 4 litres of fresh cold water, and bring to a full, rolling boil over high heat — this is where the dish lives or dies. The boil must be vigorous and sustained, not a gentle simmer, because it is the mechanical force of the hard boil that shatters rendered bone fat into fine droplets and drives them into the water, producing the characteristic opaque, milky-white colour that a gentle simmer will never achieve. Maintain this vigorous boil, uncovered, for the full cook time, topping up with boiling water as needed to keep the bones submerged.
4
After approximately 2–3 hours the brisket will be tender throughout; remove it and set it aside to cool, then slice thinly across the grain so each piece stays in one piece and does not shred when it meets the hot broth at the table. Reserve the slices for serving and return the bones to continue boiling. At no point during the cook is any seasoning added to the pot.
5
Continue the hard boil for a minimum of 24 hours from the start of the main cook, and up to 36–48 hours for maximum extraction; ladle off any excess surface fat at intervals if desired, but do not reduce the heat. At the 24-hour mark, ladle a small amount of broth into a bowl and refrigerate it — after 30 minutes it should set to a loose, trembling jelly, not firm and not liquid, which tells you that enough gelatin has left the bones to give the broth its body and clean, milky sweetness. If those conditions are not met, and if the flavour carries any gamey or heavy quality, continue boiling.
6
To serve, ladle the hot broth into deep bowls, add the reserved sliced brisket and a mound of chopped green onion, and place the rice in the bowl or serve it separately. Each diner seasons their own portion with salt and white pepper at the table, since the heat of the bowl opens the seasoning differently for every palate. Set kkakdugi on the table as the sole accompaniment; the broth in the bowl should be opaque white and release a clean, milky steam.
III
Quality Hierarchy
01
Reserve — Bones from pasture-raised Korean Hanwoo cattle, cooked 36–48 hours; the broth sets firmly to a true jelly at refrigeration temperature and the brisket is of exceptional sweetness and marbling.
02
Estate — Grass-fed ox leg bones and brisket from a known provenance butcher, cooked a full 24–36 hours; broth sets to a loose jelly and carries clean bone sweetness throughout.
03
Market — Good-quality ox leg bones and brisket from a reputable butcher or Korean supermarket, cooked the full 24 hours; broth achieves the characteristic milky opacity and a satisfying, neutral depth.
04
House — Commercially available pre-cut sagol bones; a 24-hour hard boil still yields a serviceable milky broth, though gelatin yield and sweetness will be noticeably thinner.
IV
Sensory Tests
◇Sight. The broth is fully opaque and white — not grey, not translucent, not golden — indicating fat emulsification is complete.
◇Touch. A small ladleful chilled briefly in a refrigerator sets to a loose, trembling jelly, confirming sufficient gelatin extraction from the collagen.
◇Smell. The rising steam is clean and milky with a neutral sweetness; any gamey, heavy, or off note indicates insufficient pre-soak or inadequate initial discard of the first boil water.
◇Sight. The brisket, when pressed, yields without resistance and slices cleanly across the grain without shredding, marking the correct point for its removal from the pot.
◇Where it lives or dies. The boil must be rolling and unrelenting: it is the mechanical emulsification of bone fat by vigorous agitation, not seasoning or aromatics, that creates the opaque white broth — a simmer produces clear stock and the dish ceases to exist.
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VI
What to Pour
The pairing
Baijiu
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The working kitchen