Easy Maeuntang Recipe: Spicy Korean Fish Stew at Home

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p>Late at night in Seoul, after a long evening out eating fresh raw fish at a seaside market or local neighborhood joint, there is only one dish everybody craves to settle the stomach and warm the body: a bubbling, red-hot pot of maeuntang (spicy Korean seafood stew). In my family, we never let a single fish bone go to waste. Whenever my grandmother bought fresh white fish from Noryangjin Fish Market, she would set aside the fillets for stir-fries or light pan-searing, while the head, frame, and delicate belly pieces went straight into a heavy granite pot filled with sliced radish, dried kelp stock, and a deeply aromatic chili paste.

The word maeun means spicy in Korean, and tang refers to a rich, long-simmered soup or stew. While restaurant versions can sometimes seem intimidating with whole fish heads staring up at you through a sea of chili oil, making an authentic version in your own kitchen is shockingly simple. You do not need exotic tools or rare seafood. With a few staple pantry items and fresh white fish fillets from your regular neighborhood grocery store, you can recreate that exact vibrant, soul-warming balance of fire, sea-sweet broth, and herbaceous crunch in under forty minutes.

Why This Works

• Salting the fish before simmering: Taking ten minutes to lightly salt the fresh fish draws out excess surface moisture and tightens the flesh proteins, ensuring the fish stays whole and silky rather than dissolving into the broth.
• A subtle touch of fermented soybean paste: Adding just a single teaspoon of doenjang (Korean soybean paste) grounds the bright heat of the chili flakes and neutralizes any fishy aromas without making the stew taste heavy or muddy.
• Staggered vegetable additions: Cooking the dense radish early creates a naturally sweet broth foundation, while adding tender greens like crown daisy right at the very end preserves their vibrant color and fresh herbal aroma.

Ingredients

• Fish: 600 g (1.3 lbs) fresh white fish fillets or steaks (such as cod, sea bass, red snapper, or rockfish; include fish head/bones if available)
• Broth Base: 1.2 liters (approx. 5 cups) water or Korean anchovy-kelp stock (dashima stock)
• Korean Radish (Mu): 200 g (7 oz / about 1 cup), peeled and thinly sliced into bite-sized 1-inch squares
• Onion: 100 g (3.5 oz / 1/2 medium yellow onion), sliced into 1/4-inch strips
• Zucchini: 150 g (5.3 oz / 1/2 medium zucchini), sliced into half-moons
• Mushrooms: 100 g (3.5 oz) enoki mushrooms or sliced oyster mushrooms
• Korean Crown Daisy (Ssukgat) or Minari: 50 g (1.8 oz / 1 large handful), rinsed and cut into 2-inch lengths
• Tofu: 150 g (5.3 oz) firm or medium-firm tofu, sliced into 1/2-inch thick rectangles
• Green Onions: 2 stalks, cut diagonally into 2-inch pieces
• Fresh Chilies: 1 red chili and 1 green chili (such as jalapeño or serrano), thinly sliced
• Coarse Red Chili Flakes (Gochugaru): 3 tbsp (24 g)
• Korean Fermented Chili Paste (Gochujang): 1 tbsp (15 g), such as CJ Haechandle or Sunchang
• Korean Fermented Soybean Paste (Doenjang): 1 tsp (5 g)
• Korean Soup Soy Sauce (Guk-ganjang): 1 tbsp (15 ml)
• Minced Garlic: 1.5 tbsp (22 g)
• Grated Fresh Ginger: 1 tsp (5 g)
• Cooking Wine or Mirin: 1 tbsp (15 ml)
• Black Pepper: 1/8 tsp freshly ground

Substitutions

If you cannot source Korean radish (mu), regular daikon radish works wonderfully as an equal swap. If daikon is unavailable, small white turnips or even red radishes can offer a similar juicy crispness. For the herbal finishing element, crown daisy (ssukgat) gives that signature authentic aroma, but fresh watercress, baby spinach, or a combination of parsley and cilantro added at the end provides a brilliant fresh bite. If you do not have Korean soup soy sauce (guk-ganjang), mix 2 teaspoons of light soy sauce with 1/2 teaspoon of fish sauce to match the sharp, savory salt profile.

How to Make It

1. Prep and salt the fish: Lightly sprinkle 1/2 teaspoon of sea salt over your fish pieces and let them sit on a plate at room temperature for 10 minutes. Rinse gently under cold running water and pat dry with paper towels. Why: Salt draws out cloudy surface liquids that carry fishy odors, while simultaneously firming up the delicate fish muscle fibers so the flesh does not break apart while simmering.
2. Mix the spicy seasoning paste (yangnyeom): In a small bowl, combine 3 tablespoons of gochugaru, 1 tablespoon of gochujang, 1 teaspoon of doenjang, 1 tablespoon of soup soy sauce, 1.5 tablespoons of minced garlic, 1 teaspoon of grated ginger, 1 tablespoon of mirin, and 1/8 teaspoon of black pepper. Stir until a thick paste forms. Why: Hydrating the dry gochugaru flakes in liquid before cooking allows the red color to bloom evenly into the soup and prevents gritty spice floating on top of your finished broth.
3. Simmer the radish broth base: In a wide, shallow pot or Dutch oven, lay the thinly sliced radish across the bottom. Pour in 1.2 liters of stock or water, then dollop in half of your prepared seasoning paste. Bring to a rapid boil over medium-high heat, then lower heat slightly and let it cook for 8 to 10 minutes until the radish pieces become semi-translucent along the edges. Why: Radish requires a longer cooking time to soften and releases its natural sweetness into the liquid, forming the primary savory-sweet backbone of Korean seafood stews.
4. Add the fish and remain seasoning paste: Gently lay the prepared fish pieces (and any fish head/bones if you are using them) into the bubbling radish broth. Add the remaining seasoning paste directly on top of the fish. Bring back to a gentle boil over medium heat for 5 to 6 minutes without stirring aggressively. Why: Gentle heat cooks the delicate fish evenly. Stirring vigorously with a spoon will break the fish fillets into small flakes, turning your clean broth into a thick porridge.
5. Incorporate hard vegetables and tofu: Carefully slide the sliced onion, zucchini, and tofu into the bubbling stew around the fish pieces. Simmer for another 4 to 5 minutes until the zucchini becomes tender and the tofu absorbs the red spicy broth. Why: Adding vegetables in calculated stages ensures each element retains its optimal texture rather than turning mushy.
6. Finish with delicate greens and chilies: Turn off the burner or lower the heat to minimum. Layer the enoki mushrooms, green onions, sliced chilies, and crown daisy leaves over the top of the pot. Press them down lightly with the back of a ladle just enough to submerge them in hot liquid. Cover with a lid for 1 minute before serving immediately. Why: Delicate greens like crown daisy and aromatic scallions lose their bright flavor and fresh crunch if boiled heavily; the residual steam in the pot is all they need to cook perfectly.

Tips from a Korean Kitchen

In Korean home cooking, the secret to a memorable maeuntang lies in balancing the surface fat and chili heat. Here are four practical guidelines we use at home:

• Keep the lid partially cracked during the first boil: When you first add the fish to the pot, leave the lid slightly off. This allows steam containing volatile fishy compounds (trimethylamine) to escape freely into the air rather than condensing back down into your soup base.
• Control spice with chili flakes, not chili paste: If you want your stew extra fiery, do not add more gochujang paste. Gochujang contains wheat flour and fermented rice, so adding extra will make your broth overly thick, sticky, and sweet. Instead, add extra gochugaru flakes or fresh diced cheongyang chilies (or jalapeños).
• Include fish heads or shell extra seafood: If your local fish market sells whole fish, ask the fishmonger to save the head and bones for you. Boiling the head alongside the fillets adds natural gelatin, collagen, and deep body that water alone cannot produce. Throwing in a handful of fresh clams or head-on shrimp elevates the stew to restaurant status effortlessly.
• Skim the foam consistently: As the soup simmers, a light red foam will float to the top surface. Skim this off periodically with a fine spoon. Removing this excess froth leaves you with a sparkling clear, rich crimson broth.

Storage

Maeuntang is indisputably at its peak when eaten fresh off the stove because delicate fish texture deteriorates with repeated heating. However, leftovers store surprisingly well. Transfer remaining stew into an airtight glass container and keep in the refrigerator for up to 2 days. Reheat gently in a small pot on the stove over medium-low heat until heated completely through; avoid using a microwave as it will overcook the white fish and make it rubbery. Freezing is not recommended, as cooked Korean radish and delicate white fish become spongy and watery after thawing.

FAQ

What is the best type of fish to use for maeuntang?

Lean, mild white-fleshed fish with low oil content works best for traditional Korean seafood stews. Cod, sea bass, red snapper, black rockfish, haddock, and flounder are ideal choices. Avoid very oily fish like salmon, mackerel, or tuna, as their high oil content can make the spicy broth taste overly heavy and strong.

Can I make maeuntang with frozen fish fillets?

Yes, you can absolutely use frozen white fish fillets. Thaw the fish completely overnight in your refrigerator, then thoroughly pat it dry with paper towels to remove all excess melting ice water before salting and cooking. This ensures the frozen fish does not dilute your rich seasoning paste.

Is maeuntang extremely spicy for beginners?

While it has a bright crimson color and a lively kick, authentic home-cooked maeuntang is designed to be deeply refreshing rather than painfully hot. The heat from gochugaru is balanced by the sweetness of boiled radish and onions. If you prefer mild food, simply reduce the gochugaru quantity from 3 tablespoons down to 1.5 tablespoons.

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