Korean Spicy Cod Stew Recipe: How to Make Dongtaetang at Home

When the weather turns cold, nothing beats a steaming bowl of Korean spicy cod stew. Known as dongtaetang or 동태탕, this beloved comfort dish brings together delicate white fish, peppery broth, and tender vegetables in a way that warms both body and soul. The beauty of this recipe lies in its simplicity—despite sounding intimidating to Western home cooks, it's genuinely straightforward once you understand the fundamentals.

Korean spicy fish stew has earned its place at winter dinner tables for good reason. Beyond being affordable and satisfying, it's known in Korean cuisine for its restorative qualities during cold season. The fish is mild and flaky, the broth is deeply savory, and the heat from gochugaru (Korean red chili flakes) builds gradually rather than aggressively. It's the kind of dish that tastes like someone cared about you while making it.

The biggest fear most home cooks have? Fishiness. This recipe addresses that directly through proper fish handling and preparation techniques that genuinely work. Once you master these simple steps, you'll be making this warmth-in-a-bowl whenever the craving strikes.

What Is Korean Spicy Cod Stew?

Dongtaetang is a rustic Korean soup built on a foundation of frozen pollock (called dongtae in Korean, literally "frozen fish"). The fish is simmered in an anchovy-kelp broth seasoned with both miso and red chili paste—a combination that creates layers of umami depth that single-paste broths simply cannot achieve.

The stew features a translucent, slightly spicy broth with a sweet-savory undertone. Radish becomes silky and absorbs the broth's essence, tofu adds creaminess, and tender fish flakes are the main event. Unlike heavy cream-based fish soups, this is light yet nourishing—the vegetables and broth do the lifting, not fat.

What makes this dish special is its balance. The heat is present but controlled. The fish is delicate but substantial. The broth is complex without being muddled. It's winter comfort food that doesn't require hours of prep or specialized skills.

What You'll Need to Make Korean Spicy Cod Stew

Equipment

• Large pot or Dutch oven (at least 4-quart capacity)
• Sharp knife for vegetable prep
• Kitchen shears or scissors (for trimming fish fins)
• Cutting board
• Measuring spoons and cups
• Wooden spoon or ladle
• Optional: donabe (Korean stone pot) for serving and keeping the stew warm at the table

Pantry Staples & Ingredients You Should Have

• Anchovy-kelp broth (homemade or quality store-bought)
• Traditional miso (doenjang)
• Gochujang (Korean red chili paste)
• Gochugaru (Korean red chili flakes)
• Soy sauce + salt
• Minced garlic
• Sea salt or coarse salt for seasoning

Having these staples on hand makes weeknight cooking seamless. If you haven't made anchovy-kelp broth before, it's worth preparing a batch—it freezes beautifully and elevates any Korean soup or stew you make.

Why You'll Love This Recipe

• Genuinely foolproof fish preparation: The deodorizing technique (proper cleaning and careful cooking) eliminates the "fishy" taste that intimidates home cooks, leaving only sweet, delicate fish flavor.

• Adaptable to what you have: No kelp? Use water and let the fish and paste do the talking. Missing some vegetables? Squash, green onions, and mushrooms all work beautifully. Spice-sensitive? You control the chili amount.

• Deep umami without effort: The miso-gochujang combination creates complexity that tastes like it simmered for hours, but actually comes together in under 30 minutes.

• Budget-friendly: Frozen cod is inexpensive, and this recipe stretches one fish across a full family meal. Vegetables are whatever's seasonal and on sale.

• Perfect for batch cooking: Makes 3–4 generous servings and reheats beautifully. Flavors actually deepen the next day.

• Naturally satisfying: Warm broth, lean protein, and vegetables create a meal that's filling without heaviness—ideal for any season but especially winter.

Ingredients

Serves 3–4 people

For the Broth & Base

• 1 liter (4 cups) anchovy-kelp broth, homemade or store-bought
• 1 tablespoon (about 20g) traditional miso (doenjang)
• ½ tablespoon gochujang (Korean red chili paste)
• 2 tablespoons minced garlic
• 2 tablespoons soy sauce + 1 teaspoon salt (or to taste)
• 2½ tablespoons gochugaru (Korean red chili flakes)
• ½ teaspoon white pepper
• 2 tablespoons cooking stock or additional broth (for adjusting seasoning)

For the Main Components

• 1 whole frozen pollock (dongtae), approximately 3–4 pounds, cleaned and trimmed
• 7–8 ounces radish (about 200–230g), cut into bite-sized cubes
• ½ medium onion, sliced thinly
• 1 large leek or scallion, cut on the bias
• 2 fresh green chili peppers, sliced
• ½ fresh red chili pepper, sliced
• ½ block firm tofu (about 8 ounces), cut into thick cubes
• Handful of fresh crown daisy (ssukgat) or watercress for garnish

Optional Additions

• Sliced shiitake or oyster mushrooms
• Kabocha squash or winter squash, cubed
• Additional leafy greens

How to Make Korean Spicy Cod Stew

Step 1: Prepare the Frozen Fish

Thaw the frozen pollock partially under cool running water if needed, or work with it semi-frozen (it's actually easier to handle). The goal is to remove any fins, gills, and loose skin that contribute to fishiness.

Using kitchen shears or a sharp knife, trim the dorsal and pectoral fins close to the body. Open the fish cavity gently and remove any remaining gills or organs. Rinse thoroughly under cold water, paying special attention to the inside cavity. Pat dry with paper towels.

Pro tip: If you have rice washing water (the starchy water left after rinsing rice), soak the fish in it for 10 minutes before cooking. This is a traditional deodorizing step that genuinely works. If you don't have it, a quick rinse is sufficient.

Step 2: Prepare Your Vegetables

Cut the radish into bite-sized cubes—about the size of a sugar cube or slightly larger. These will soften as they cook and absorb the broth's savory essence.

Slice the onion thinly so it becomes silky when cooked. Cut the leek or scallion on the bias into 1-inch pieces. Slice both the green and red chilies into thin rounds. If you prefer milder heat, remove the seeds before slicing.

Cut tofu into thick rectangles or cubes. Have all vegetables prepped and within arm's reach—the cooking happens quickly once you start.

Step 3: Build Your Broth Base

Pour the anchovy-kelp broth into your pot and bring it to a gentle boil over medium-high heat. This is the foundation—quality broth makes an enormous difference here.

Measure the miso and gochujang into a small bowl. Once the broth is steaming, scoop a little broth into the bowl with the pastes and stir until completely smooth. This prevents lumps. Pour this mixture back into the pot, stirring to combine evenly.

Add the minced garlic, soy sauce, gochugaru, and white pepper. Stir well. Let this simmer for a few minutes so the flavors marry together. Taste cautiously—this is your baseline seasoning.

Step 4: Add the Radish

Add the radish cubes to the simmering broth. Radish takes longer to soften than other vegetables, so it goes in first. Let it cook for about 5 minutes at a medium boil until it becomes tender but not mushy.

The radish will absorb the broth and become sweet and silky. This is intentional and delicious.

Step 5: Add the Fish

Carefully place the whole cleaned fish into the pot. It should be mostly submerged or nestled among the radish pieces. Increase the heat slightly to maintain a gentle boil.

The fish will begin to cook immediately. You'll see the flesh turn opaque at the edges and begin to flake. This step takes approximately 7 minutes. The key is cooking long enough that the fish is fully done but not so long that it becomes tough.

While the fish cooks, don't stir aggressively—you want it to remain in pieces when served.

Step 6: Season and Add Aromatics

Sprinkle the gochugaru over the cooking fish and stir gently. Add the sliced onion, leek, and fresh chili peppers. These aromatic vegetables cook in just 2–3 minutes, so there's no need to add them earlier.

Taste the broth. Does it need more salt? A tiny pinch of coarse sea salt adjusts the seasoning without changing the flavor profile. Remember, the soy sauce already provides salinity and umami, so adjust gradually and taste as you go.

Continue simmering for another 3–4 minutes until the vegetables are just tender and the fish is cooked through.

Step 7: Add Tofu and Finish

Add the tofu pieces in the final minute of cooking. You want it warmed through but not disintegrated. Tofu is delicate, so handle it gently with your spoon.

Give everything a gentle stir. The broth should be lightly cloudy from the miso and richly colored from the gochugaru.

Step 8: Serve Immediately

Transfer the stew to a serving pot or directly into bowls. Garnish generously with fresh crown daisy or watercress. The fresh herb adds brightness that balances the savory, spicy depth of the broth.

If you're using a traditional Korean stone pot (donabe), transfer the stew there at the table—it keeps everything warm throughout the meal and looks beautiful.

Tips for Success

Fish Quality Matters: Frozen pollock is traditional and affordable, but fresh or frozen cod works equally well. The cleaner your fish handling, the better your results.

Make Your Own Broth: If you have time, brewing a quick anchovy-kelp broth elevates this dish noticeably. However, quality store-bought broth is perfectly acceptable—don't skip the recipe just because you're using a shortcut.

Control Your Heat: The gochugaru amount is entirely up to you. Start with less and add more. This recipe uses 2½ tablespoons for moderate spiciness; reduce to 1½ if you prefer gentler heat, or increase to 3 tablespoons if you love intense chili flavor.

Vegetable Substitutions: Love squash? Cube kabocha or butternut squash and add it with the radish. Prefer mushrooms? Shiitake or oyster mushrooms are excellent. The core technique doesn't change—just adjust cooking times slightly for denser vegetables.

Leftover Magic: This stew tastes even better the next day. Store it in an airtight container in the refrigerator for up to 3 days. Reheat gently on the stove, adding a splash of broth if needed.

Serving Suggestions

Serve your Korean spicy cod stew alongside steamed white rice. The rice absorbs the broth beautifully, and together they create a complete meal. Add a simple Korean banchan (side dish) like quick-pickled radish or seasoned spinach to round out the table.

For a lighter meal, this stew stands on its own without rice—the vegetables and fish provide plenty of substance.

Frequently Asked Questions

Q: Can I use fresh fish instead of frozen? A: Yes, absolutely. Fresh white fish like cod, haddock, or halibut works wonderfully. The cooking time might be slightly shorter, so watch carefully to avoid overcooking.

Q: What if I don't have anchovy-kelp broth on hand? A: Use unsalted vegetable or chicken broth as your base. The fish and seasonings will still create a flavorful stew. If you want to deepen the umami, add a small piece of dried kelp to the broth while it simmers.

Q: How spicy is this Korean spicy fish stew? A: It's moderately spicy—more warming heat than aggressive burn. Gochugaru provides a lingering warmth rather than sharp kick. You control the intensity entirely.

Q: Can I make this in advance? A: The broth base can be made several hours ahead and reheated. However, add the fish and tofu just before serving so they don't become overcooked or mushy.

Q: What's the difference between gochugaru and gochujang? A: Gochugaru is dried, ground red chili flakes—used for heat and color. Gochujang is a fermented paste—used for depth and umami. This recipe uses both for complexity.

Korean spicy cod stew isn't fussy or pretentious. It's honest food that tastes like care, built on simple techniques you've now mastered. The initial worry about fishiness disappears once you understand proper preparation. The umami complexity that seems sophisticated is actually just two complementary pastes working in harmony. The warmth and comfort are entirely real.

Make this recipe this week. Serve it with rice, a simple vegetable side, and watch how quickly your table comes alive. Once you've made it once, you'll make it again—probably many times.

Looking for more warming Korean soups to rotate into your winter menu? Explore our collection of easy Korean soups for cold weather, or try our guide to making anchovy-kelp broth from scratch to elevate all your Korean cooking.