Korean soy-marinated crab is a beloved delicacy where pristine raw blue swimming crabs are submerged in a sweet-savory soy brine until the meat turns silky and custardy. Served ice-cold with steamed rice and eggs, it is the ultimate expression of Korea's love for fresh seafood.
Prep Time30 mins
Cook Time15 mins
Total Time45 mins
Servings4
Yield4 servings
Nutrition Facts
Per serving (estimated)
- 310 kcalCalories
- 5 gFat
- 1 gSaturated Fat
- 22 gCarbs
- 1 gFiber
- 14 gSugar
- 38 gProtein
- 2800 mgSodium
- 620 mgPotassium
- 190 mgCalcium
- 4 mgIron
- 9 mgVitamin C
- 60 mcgVitamin A
Ingredients
For the Crabs
- 4 live blue swimming crabs (about 400-500 g each)
- 1/2 cup coarse sea salt, for purging
- Cold water, for soaking
For the Soy Marinade
- 2 cups Korean soy sauce (jin ganjang)
- 1/2 cup water
- 1/3 cup rice syrup (jocheong) or packed brown sugar
- 1/4 cup Korean rice wine (cheongju) or sake
- 1 small Korean or Asian pear, peeled, cored, and sliced
- 1 small yellow onion, sliced
- 10 garlic cloves, smashed
- 1 (1-inch) knob fresh ginger, sliced
For Serving
- 2 tablespoons toasted sesame oil
- 2 cups steamed short-grain white rice
- 4 steamed eggs (gyeran jang), optional
- 1 bunch fresh perilla leaves or lettuce cups
Directions
- 1. Purge the live crabs in a large bowl of cold salted water (1/2 cup salt per 4 liters water) for 2-4 hours, changing the water once, so they empty their stomachs.
- 2. Scrub each crab under cold running water with a stiff brush, then pull off the top shell and discard the gills, mouth, sand sac, and apron. Rinse well and pat dry with paper towels.
- 3. Using a heavy knife or kitchen shears, cut each crab into 4-6 pieces, leaving the legs attached. Crack the claws and leg joints slightly so the marinade can penetrate the meat.
- 4. In a large non-reactive pot, combine the soy sauce, water, rice syrup, rice wine, pear, onion, garlic, and ginger. Bring to a gentle boil over medium heat, then reduce and simmer 8-10 minutes to soften the aromatics and dissolve the syrup. Remove from heat and cool completely to room temperature.
- 5. Layer the crab pieces in a large glass or ceramic container (avoid metal), tucking some of the cooked aromatics between each layer.
- 6. Pour the cooled marinade over the crab until fully submerged. Press a small plate directly on the crab to keep it immersed. Cover tightly and refrigerate for 24-48 hours, gently turning the container once at the halfway point.
- 7. To serve, lift the crab pieces out of the marinade and arrange them on a chilled plate. Drizzle generously with toasted sesame oil.
- 8. Serve very cold with steamed rice, steamed eggs, and lettuce or perilla leaves for wrapping. Spoon a little of the strained marinade over the rice if desired.
Cook’s Notes
- Source only the freshest live crabs from a reputable seafood market; freshness is non-negotiable for this raw preparation.
- Use Korean jin ganjang (regular brewed soy sauce), not the darker, thicker soup-style soy sauce reserved for stews.
- Marinate no longer than 3 days or the delicate crab texture can turn mushy; 36-48 hours is ideal.
- Reserve a small jar of the strained leftover marinade to use as a dipping sauce for the steamed eggs and rice.
- Pregnant women, the elderly, and immunocompromised individuals should avoid this raw seafood dish.










