Chef Jeong-sun
Ganjang-gejang (Soy-Marinated Raw Crab)
Raw flower crab cured in a clean soy brine, boiled and cooled before it ever touches the shell, then poured over twice until the sweet flesh and orange roe steal the rice bowl.
Culinary Explorer
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Yangnyeom-gejang (Spicy Marinated Raw Crab)
Created by
The spicy sibling of soy crab: fresh raw blue crab cut through the shell, coated in a red yangnyeom that clings, and eaten with rice before the crab loses its sweetness.
Main Dishes
Korean
Special Occasion
Comfort Food
35 min
Active Time
0 min cook•2 hr 35 min total
Yield4 servings as a main with rice, or 6 as part of a shared table
Yangnyeom-gejang begins at the fish stall, not at the mixing bowl. If the blue crabs are not alive, cold, and clean-smelling, walk away. My teacher would have sent them back without a word. This is raw crab, and no amount of garlic, chili, or sesame oil fixes poor buying. Cook the month you are standing in: spring females are prized for roe, autumn crabs for full meat, and outside those seasons you should ask the market what came in strong today.
People call this a marinade, but do not treat it like ganjang-gejang (soy-marinated crab). Yangnyeom-gejang is fresher and more immediate. The crab is cut, the gills and sand removed, the shell cracked just enough for the seasoning to enter, then the red yangnyeom is worked into every joint. It needs a short rest, not a long sleep. Past a day, the crab loses its clean sweetness and the seasoning turns muddy.
The sauce must cling without burying the crab. Too much gochujang makes it pasty. Too much sugar makes it childish. Use gochugaru for color and clean heat, a little gochujang for body, soy and fish sauce for salt, and enough rice syrup to round the edge. 손맛 is real; I measure it anyway, so the next cook can make the same good bowl twice.
Serve it with hot rice, gim (roasted seaweed), and something plain beside it, because the table needs balance. I won't tell you this is easy. You are handling raw shellfish and cutting through hard shell. Work cold, work clean, and eat it tonight.
Gejang, raw crab preserved or seasoned in jang (soy-based sauce), is recorded in Korean food literature by the Joseon period, including household manuals that describe crab held in soy sauce. Yangnyeom-gejang is a more recent and immediate branch than ganjang-gejang, shaped by the wider use of gochugaru and gochujang in modern home and restaurant cooking. Korea's blue crab, kkotge, is especially tied to the west coast, with spring and autumn catches shaping when crab dishes appear most proudly on the table.
The technique, the tradition, and the story behind every dish.
Discover Culinary ExplorerIngredients
live blue crabs (kkotge)
Quantity
1.2kg, about 4 medium
kept very cold
coarse sea salt
Quantity
2 tablespoons
for scrubbing
gochugaru (Korean chili flakes)
Quantity
1/2 cup
medium grind
gochujang (Korean red chili paste)
Quantity
2 tablespoons
soy sauce
Quantity
3 tablespoons
fish sauce or Korean soup soy sauce
Quantity
1 tablespoon
rice syrup (ssal-jocheong) or corn syrup
Quantity
2 tablespoons
sugar
Quantity
1 tablespoon
maesil-cheong (green plum syrup) (optional)
Quantity
2 tablespoons
toasted sesame oil
Quantity
2 tablespoons
garlic
Quantity
6 cloves
finely minced
fresh ginger
Quantity
1 tablespoon
finely grated
Korean pear or Asian pear
Quantity
1/2 small
grated and squeezed to yield 3 tablespoons juice
scallions
Quantity
3
thinly sliced on the diagonal
small onion
Quantity
1
very thinly sliced
green chili
Quantity
1
thinly sliced
red chili
Quantity
1
thinly sliced
toasted sesame seeds
Quantity
1 tablespoon, plus more for serving
hot cooked short-grain rice
Quantity
to serve
roasted gim (seaweed) (optional)
Quantity
to serve
| Ingredient | Quantity |
|---|---|
| live blue crabs (kkotge)kept very cold | 1.2kg, about 4 medium |
| coarse sea saltfor scrubbing | 2 tablespoons |
| gochugaru (Korean chili flakes)medium grind | 1/2 cup |
| gochujang (Korean red chili paste) | 2 tablespoons |
| soy sauce | 3 tablespoons |
| fish sauce or Korean soup soy sauce | 1 tablespoon |
| rice syrup (ssal-jocheong) or corn syrup | 2 tablespoons |
| sugar | 1 tablespoon |
| maesil-cheong (green plum syrup) (optional) | 2 tablespoons |
| toasted sesame oil | 2 tablespoons |
| garlicfinely minced | 6 cloves |
| fresh gingerfinely grated | 1 tablespoon |
| Korean pear or Asian peargrated and squeezed to yield 3 tablespoons juice | 1/2 small |
| scallionsthinly sliced on the diagonal | 3 |
| small onionvery thinly sliced | 1 |
| green chilithinly sliced | 1 |
| red chilithinly sliced | 1 |
| toasted sesame seeds | 1 tablespoon, plus more for serving |
| hot cooked short-grain rice | to serve |
| roasted gim (seaweed) (optional) | to serve |
Equipment Needed
- •Stiff brush for scrubbing shellfish
- •Heavy chef's knife or poultry shears
- •Crab cracker or the back of a heavy knife
- •Food-safe gloves
- •Shallow glass or stainless steel container with lid
Instructions
- 1
Buy safely
Buy live blue crabs from a trusted fishmonger who understands they will be eaten raw, and bring them home cold. The crabs should move, smell clean like the sea, and feel heavy for their size. If they are dead, warm, cracked, or sour-smelling, do not make gejang. Marinating does not make unsafe crab safe.
Raw crab is not for pregnant people, older adults, very young children, or anyone immunocompromised. For those diners, steam the crab and make a spicy seasoned cooked crab instead. Good food also knows who is eating. - 2
Chill the crabs
Put the live crabs in the freezer for 20 to 25 minutes, just until they are numbed and easier to handle. Do not freeze them solid. This is a handling step, not storage, and it keeps the meat cold while you work.
- 3
Scrub and clean
Rinse the crabs under cold running water. Scrub the shells, legs, and joints with the coarse salt and a stiff brush, then rinse again. Lift off the top shell, remove the gills and mouth parts, and rinse away any sand while keeping the roe and tomalley if they are clean. Pat everything dry. Water left on the crab thins the seasoning and shortens its good life.
- 4
Cut the crab
Cut each body into 4 pieces with a heavy knife or kitchen shears, then crack the claws and thicker legs with the back of the knife or a crab cracker. You are not smashing them; you are opening paths for the seasoning. Keep the top shells for serving, especially if they hold roe.
- 5
Mix the yangnyeom
In a large bowl, stir together the gochugaru, gochujang, soy sauce, fish sauce, rice syrup, sugar, maesil-cheong if using, sesame oil, garlic, ginger, and 3 tablespoons pear juice. Let it sit 10 minutes so the gochugaru blooms and thickens. The sauce should be glossy and spoonable, not dry paste and not liquid.
- 6
Taste and adjust
Taste the seasoning before it touches the crab. It should be salty, spicy, a little sweet, and sharper than you want the finished dish, because the raw crab will soften it. If it tastes flat, add 1 teaspoon soy sauce. If it is harsh, add 1 teaspoon rice syrup. Adjust in teaspoons, not in careless spoonfuls.
- 7
Season by hand
Add the crab pieces, sliced scallions, onion, green chili, red chili, and sesame seeds to the bowl. Wearing food-safe gloves, work the yangnyeom into the cut sides, leg joints, and cracked claws until every piece is coated. Be thorough and gentle. Broken shell shards make ugly eating, and crushed crab loses its sweetness.
- 8
Rest cold
Pack the seasoned crab into a shallow glass or stainless container, spooning any remaining sauce over the top. Cover and refrigerate 1 to 2 hours. This short rest lets the seasoning enter the cuts while the crab still tastes fresh. Longer is not better here.
- 9
Serve tonight
Serve cold, with hot short-grain rice and roasted gim. Spoon some sauce and any roe into the top shells for mixing with rice. Scatter a little more sesame over the crab at the table. Eat within 24 hours, and keep the dish cold between servings.
Chef Tips
- •Blue crab is the usual crab for this dish. If you can only buy pasteurized or previously frozen crab, do not pretend it is the same raw gejang; use it for a cooked spicy crab stir-fry or stew.
- •Use more gochugaru than gochujang. Gochugaru gives clean heat and color, while gochujang gives body. Too much paste covers the crab, and the dish starts tasting like sauce instead of the sea.
- •A shallow container seasons better than a deep jar for this version. The crab pieces lie in one or two layers, and the yangnyeom touches more cut surfaces. The vessel can change. The cold handling cannot.
- •Do not save the leftover sauce for another raw batch. It has touched raw crab. If you want to use it, bring it to a full boil and turn it into a cooked sauce for rice or noodles the same day.
Advance Preparation
- •The yangnyeom can be mixed up to 1 day ahead without the scallions, onion, chilies, or sesame seeds. Keep it refrigerated, then stir in the fresh vegetables just before seasoning the crab.
- •Do not clean and cut the crabs far ahead. Buy them the day you will serve them, clean them cold, season them, rest them briefly, and eat them within 24 hours.
- •Cook the rice before serving, not after the crab comes to the table. Yangnyeom-gejang waits cold; rice should arrive hot.
Frequently Asked Questions
Nutrition Information
1 serving (about 350g)
Calories
505 calories
Total Fat
12 g
Saturated Fat
2 g
Trans Fat
0 g
Unsaturated Fat
9 g
Cholesterol
60 mg
Sodium
1700 mg
Total Carbohydrates
79 g
Dietary Fiber
5 g
Sugars
20 g
Protein
22 g
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