Haemultang — Korea's Spicy Seafood Stew and How the Broth Gets Its Depth

Haemultang (해물탕) — haemul (해물, seafood) + tang (탕, broth stew) — is Korea's answer to the French bouillabaisse: a communal pot of mixed seafood in a deeply flavored broth, simmered at the table. Unlike French seafood stew, which uses saffron and wine, haemultang uses gochugaru (Korean red pepper flakes), doenjang (fermented soybean paste), and an anchovy-kelp base — the result is vivid red, spicy, and more intensely savory.

The Broth Foundation

Haemultang's depth comes from two sources working together:

1. The base broth: anchovy-kelp stock, which provides clean, oceanic umami
2. The seafood release: as the clams, mussels, and shellfish cook, they release their own juices into the broth, adding a layered marine flavor that couldn't be replicated with a prepared stock

Base stock:

• 8-10 dried anchovies (myeolchi), heads and guts removed
• 10cm kombu (dashima)
• 1.2 liters cold water

Cold-start the anchovies and kombu, bring to a simmer, cook 15 minutes. Remove. The broth should taste clean and faintly oceanic.

Seasoning the Broth

Add to the anchovy-kelp base:

• 3 tbsp gochugaru (Korean red pepper flakes — medium-coarse grind)
• 1 tbsp doenjang (fermented soybean paste)
• 1 tbsp gochujang (fermented chili paste)
• 2 tbsp fish sauce (eomuk or general)
• 1 tbsp soy sauce
• 1 tsp sesame oil
• 5 garlic cloves, minced
• 1 tsp grated ginger

The doenjang adds fermented depth; the gochugaru provides heat and color; the gochujang adds sweetness and thickness. Together they form the characteristic Korean maeun (매운, spicy-savory) broth profile.

The Seafood

Classic haemultang uses a variety of seafood for flavor layering — each type releases different compounds:

Base seafood (always):

• Clams — bajirak (short-necked) or mosijoegae (Asian clams): open as they cook and release sweet broth
• Mussels: open quickly, add oceanic flavor

Main seafood:

• Crab (flower crab or blue crab, halved): the crab shell releases flavor into the broth
• Large shrimp (head on): shrimp heads contain the most concentrated flavor
• Squid, scored: adds tender, mild protein

Vegetables:

• Zucchini, cut into half-moons
• Tofu cubes
• Enoki or shiitake mushrooms
• Chrysanthemum greens (ssukgat) or watercress — added at the end

Order of Addition

The order matters — different seafood has different cooking times:

1. Bring seasoned broth to a boil in the pot at the table
2. Add crab first — it takes longest, 8-10 minutes
3. Add clams and mussels — 5-7 minutes until they open
4. Add shrimp and squid — 3-4 minutes
5. Add zucchini, tofu, mushrooms — 3 minutes
6. Add chrysanthemum greens last — they wilt in 1 minute

Discard any clams or mussels that don't open. Open shells indicate the animal was alive and cooked; closed shells indicate it was dead before cooking.

The Bokkeumbap Ending

At Korean seafood restaurants, after the haemultang pot is mostly eaten, a server often adds cooked rice directly to the remaining broth and stir-fries it briefly in the pot — bokkeumbap (볶음밥, fried rice). The rice absorbs the intensely flavored residual broth and the slight char from the bottom of the pot. This final course is considered the best part of the meal by many Korean diners.

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Haemultang scales with seafood quality: the better the clams and crab, the better the broth becomes during cooking. It is one of those dishes where the cooking process itself generates the dish's best flavors rather than them existing in prepared form before cooking begins.