If you’ve ever wondered how to bring fiery, savory brilliance straight to your dinner table, look no further than this Korean Spicy Braised Mackerel Recipe. It’s a brilliant harmony of bold Korean flavors and the rich, flaky texture of fresh mackerel, simmered gently to soak in a vibrant sauce that features the perfect kick of gochugaru. This dish is not only packed with flavor but is also comforting, colorful, and incredibly satisfying—ideal for sharing with loved ones or treating yourself to an authentic taste of Korean home cooking.

Ingredients You’ll Need
The secret to a remarkable Korean Spicy Braised Mackerel Recipe lies in its simple, fresh ingredients that each play a vital role. From the spicy gochugaru to the crisp radish, every element contributes to a layered experience of taste, texture, and color that makes this dish stand out.
- Garlic (2 cloves, finely minced): Brings a fragrant punch that forms the backbone of the sauce’s aroma.
- Minced Ginger (1.5 teaspoons): Adds a warm, zesty kick that brightens the overall flavor.
- Gochugaru (3 tablespoons): Korean red pepper flakes that give this dish its signature spicy heat and vibrant color.
- White Granulated Sugar (0.5 teaspoon): Balances out the spice with a subtle touch of sweetness.
- Soy Sauce (0.25 cup): Deepens flavor with its salty umami richness.
- Sesame Oil (1 teaspoon): Infuses a lovely nutty aroma that ties the dish together.
- Mackerel Fillets (2 medium-sized): Rich in omega-3 fatty acids, tender and flaky for that perfect main protein.
- Korean Radish or Daikon (1 small, sliced): Offers a crunchy contrast that soaks up the spicy sauce beautifully.
- Onion (1 small, chopped): Provides sweetness and depth during the braising process.
- Green Onions (5 stalks, chopped): Fresh garnish that adds brightness and a mild crunch on top.
How to Make Korean Spicy Braised Mackerel Recipe
Step 1: Prepare the Spicy Sauce
Start by mixing the garlic, minced ginger, gochugaru, sugar, soy sauce, and sesame oil in a small bowl until it becomes a thick, paste-like sauce. This spicy, savory blend is the heart of your dish, delivering that iconic Korean flavor kick with every bite.
Step 2: Slice the Radish
Chop your Korean radish or daikon into sizeable 2 inch by 1 inch by half-inch thick sections. Then, slice those pieces again into half-inch thick slices. These will create a tender yet crunchy bed for the fish, perfectly absorbing the flavors during cooking.
Step 3: Layer the Vegetables and Seasoning
In a medium saucepan, arrange the sliced radish and chopped onions evenly at the bottom. Spread the spicy red pepper paste over these vegetables to let the flavors start melding right from the start.
Step 4: Add the Mackerel Fillets
Gently place your mackerel fillets on top of the vegetable layer. Carefully pour in enough water just to cover the bottom of the pan—this creates the perfect braising environment to simmer the fish to tender perfection.
Step 5: Braise the Mackerel
Turn the heat up to bring the mixture to a boil. Once boiling, cover the pan and reduce the heat to medium-low. Let it gently braise for about 30 minutes, flipping the mackerel halfway through so both sides soak up that delicious sauce evenly.
Step 6: Reduce and Intensify the Sauce
After the fish is cooked, remove the lid and raise the heat to medium-high. Let the sauce simmer uncovered for another 10 to 15 minutes to thicken and intensify the flavors while the radish becomes tender and flavorful.
Step 7: Ready to Serve
Now your Korean Spicy Braised Mackerel Recipe is done and ready to be shared. Garnish with chopped green onions or a sprinkle of toasted sesame seeds if you like, and get ready for a meal bursting with authentic flavor and heartwarming comfort.
How to Serve Korean Spicy Braised Mackerel Recipe

Garnishes
A sprinkle of chopped green onions or toasted sesame seeds is perfect to add a fresh, nutty crunch that lifts the dish visually and texturally. These simple touches bring color and contrast to the vibrant red sauce and tender fish.
Side Dishes
Serve this hearty mackerel dish alongside steamed white rice to soak up all those delicious braising juices. You can also add simple Korean banchan like kimchi or pickled vegetables to round out the meal with refreshing acidity and crunch.
Creative Ways to Present
For a family-style dinner, serve the mackerel and vegetables right from the pot to the table, encouraging everyone to scoop up generous portions of fish and braised radish. Alternatively, plate individual servings with a sprinkle of extra gochugaru for guests who like extra heat, making it fun and interactive.
Make Ahead and Storage
Storing Leftovers
Store any leftover Korean Spicy Braised Mackerel Recipe in an airtight container and refrigerate. The flavors only deepen overnight, making it a fantastic next-day meal.
Freezing
You can freeze the cooked mackerel and broth in a freezer-safe container for up to 2 months. Thaw overnight in the fridge before reheating to maintain texture and flavor.
Reheating
Reheat leftovers gently in a saucepan over medium heat to prevent the mackerel from drying out. Add a splash of water if needed to loosen the sauce and keep it moist and flavorful.
FAQs
Can I use other types of fish instead of mackerel?
Yes, while mackerel is traditional for this recipe due to its rich flavor and oily texture, firm fish like sardines or even salmon can work well. Just adjust cooking times to avoid overcooking more delicate fish.
How spicy is this Korean Spicy Braised Mackerel Recipe?
The heat level primarily comes from the gochugaru. If you prefer milder spice, reduce the amount or balance it with a bit more sugar or soy sauce. Conversely, add extra red pepper flakes if you love a fiery kick.
Is this recipe gluten-free?
Traditional soy sauce contains gluten, but you can substitute tamari or a gluten-free soy sauce alternative to make this dish suitable for gluten-free diets without sacrificing flavor.
Can I prepare this dish ahead of time?
Absolutely! The flavors actually develop more beautifully if the dish rests for several hours or overnight in the fridge. Just reheat gently when ready to enjoy.
What should I serve with Korean Spicy Braised Mackerel Recipe?
Steamed rice is a must, but you can also serve it with simple Korean side dishes like kimchi, steamed vegetables, or even a light cucumber salad to provide freshness and crunch.
Final Thoughts
This Korean Spicy Braised Mackerel Recipe is truly a vibrant and satisfying dish that bridges simple ingredients with bold, unforgettable flavors. Whether you’re new to Korean cooking or a seasoned fan, it brings a comforting warmth and a little heat to any meal. Gather your ingredients, invite some friends or family, and dive into the joy of this delicious journey—you’ll want to make it a regular in your kitchen!
Print
Korean Spicy Braised Mackerel Recipe
- Prep Time: 10 minutes
- Cook Time: 30 minutes braising + 15 minutes simmering = 45 minutes
- Total Time: 55 minutes
- Yield: 4 servings
- Category: Main Course
- Method: Stovetop
- Cuisine: Korean
Description
This Mouthwatering Korean Spicy Braised Mackerel recipe features tender mackerel fillets simmered with Korean radish, onions, and a spicy, flavorful sauce made from gochugaru and soy sauce. The dish is rich in omega-3 fatty acids and balanced with a nutty hint of sesame oil, delivering a warming, authentic Korean meal perfect for family-style dining.
Ingredients
Spice Paste
- 2 cloves Garlic (finely minced)
- 1.5 teaspoons Minced Ginger
- 3 tablespoons Gochugaru (Korean red pepper flakes)
- 0.5 teaspoon White Granulated Sugar
- 0.25 cup Soy Sauce
- 1 teaspoon Sesame Oil
Main Ingredients
- 2 medium-sized Mackerel Fillets
- 1 small Korean Radish or Daikon (sliced)
- 1 small Onion (chopped)
- 5 stalks Green Onions (chopped for garnish)
Instructions
- Prepare the spice paste: In a small bowl, thoroughly combine finely minced garlic, minced ginger, gochugaru, sugar, soy sauce, and sesame oil until a thick, paste-like consistency is formed, which will infuse the dish with robust Korean flavors.
- Slice the radish: Cut the Korean radish or daikon into 2-inch by 1-inch by 1/2-inch thick segments, then slice those sections further into 1/2-inch thick pieces to create a crunchy texture that complements the soft fish.
- Layer vegetables and seasoning: In a medium saucepan, arrange the radish slices and chopped onions evenly at the bottom. Spread the red pepper seasoning paste over these layers, allowing the flavors to permeate into the vegetables as they cook.
- Add the fish: Carefully place the mackerel fillets on top of the radish and onion layers to keep the fish intact during braising, then pour in enough water to just cover the bottom of the pan, creating a moist cooking environment.
- Simmer the dish: Bring the mixture to a rapid boil over high heat, then cover and reduce to medium-low heat. Let it braise gently for 30 minutes, flipping the fish halfway through to ensure even cooking and flavor absorption.
- Finish simmering: Remove the lid after the initial braising. Increase the heat to medium-high and continue simmering uncovered for another 10 to 15 minutes to thicken the sauce and intensify the flavors.
- Serve and garnish: Present the braised mackerel family-style at the table, topped with chopped green onions and a sprinkle of sesame seeds if desired for added aroma and texture.
Notes
- Flipping the fish halfway during cooking helps it cook evenly and absorb the seasoning better.
- Use fresh mackerel fillets for best flavor and texture.
- If Korean radish is unavailable, daikon radish is an excellent substitute.
- Adjust gochugaru quantity based on preferred spice level.
- Serve with steamed rice to balance the spicy and savory flavors.

