Korean Crab Doenjang Stew

Quick answer

Total time: 30 min
Level: Easy
Servings: 2 servings
Ingredients: 5

About this dish

Gejang-jjigae is a Korean stew made by simmering a whole blue crab in an anchovy broth base seasoned with doenjang, the fermented soybean paste.

The crab shell and meat release a concentrated seafood stock as they cook, and that liquid merges with the doenjang to create a broth that is simultaneously briny, earthy, and deeply savory. Using anchovy broth as the foundation amplifies the oceanic notes rather than diluting them, so both the doenjang umami and the crab sweetness come through at the same time. Tofu and zucchini absorb the rich cooking liquid throughout the simmering process, becoming flavorful in their own right rather than acting merely as filler. The tofu in particular pulls in the solids that settle from the fermented paste, softening into a silky texture that contrasts with the firmer crab meat. Picking the sweet crab meat out of the shell with chopsticks is one of the characteristic pleasures of eating this stew, and the contrast between the naturally sweet crab flesh and the bold, fermented broth gives each mouthful a satisfying complexity.

Ingredients

servings

IngredientAmountUnit

Blue crab1 wholewhole

Doenjang2 tbsptbsp

Tofu150 gg

Zucchini½ piecepiece

Anchovy broth500 mlml

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Instructions

Read the steps as a cooking flow: prep, heat, seasoning, doneness control, and finish.

6 steps

1

Season

Scrub the blue crab with a brush, especially around the shell joints and legs.

Remove the belly flap, cut the body in half, and keep the exposed meat facing upward so its juices can season the broth quickly.
2

Prep

Cut 150g tofu into 1.5cm slices and slice half a zucchini into half-moons.

Keep both pieces fairly thick, because thin tofu breaks apart and thin zucchini turns mushy before the crab broth is fully developed.
3

Control

Pour 500ml anchovy broth into a pot and bring it to a full boil over high heat.

When it bubbles steadily, press 2 tablespoons doenjang through a strainer and stir until no large paste lumps remain.
4

Control

Add the prepared crab and lower the heat to medium.

Simmer until the shell begins turning red, skimming off foam as it rises so the broth stays clean and the crab flavor remains clear.
5

Control

Add the tofu and zucchini and keep simmering over medium heat.

Cook until the tofu absorbs the seasoned broth and the zucchini edges look slightly translucent, avoiding a hard boil that can break the tofu.
6

Finish

Taste the broth before serving and check first that the doenjang has fully dissolved if it seems flat.

Serve when the crab meat feels firm, the broth tastes savory, and the tofu still holds its shape.

Practical Cooking Checks

The cues that matter most while cooking.

Key technique: Gejang jjigae merges the oceanic umami of whole blue crabs with a fermented soybean paste base to deepen the savory anchovy stock.
Finish cue: Serve when the crab meat feels firm, the broth tastes savory, and the tofu still holds its shape.
Avoid this: Keep both pieces fairly thick, because thin tofu breaks apart and thin zucchini turns mushy before the crab broth is fully developed.