Korean Godeungeo-gui, Salt-Grilled Mackerel

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Jagalchi Fish Market

📍 Where this dish comes from: Busan · Jagalchi Fish Market
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Korean Godeungeo-gui, plated and ready to serve

Godeungeo-gui is one of the simplest and most beloved dishes on the Korean home table: a whole mackerel fillet, lightly salted and grilled until the skin crackles. Mackerel is rich in omega-3 fats and naturally carb-free, so this is keto cooking at its easiest.

Per serving: 415 calories · 0.6 g net carbs · 32 g protein · 31 g fat (calculated from the ingredients)

What You’ll Need

Ingredients for Korean Godeungeo-gui

Korean Godeungeo-gui, plated and ready to serve

Korean Godeungeo-gui, Salt-Grilled Mackerel

Godeungeo-gui is one of the simplest and most beloved dishes on the Korean home table: a whole mackerel fillet, lightly salted and grilled until the skin crackles. Mackerel is rich in omega-3 fats and naturally carb-free, so this is keto cooking at its easiest.
Prep Time: 5 minutes
Cook Time: 12 minutes
Total Time: 17 minutes
Course: Main Course
Cuisine: Korean
Servings: 2 servings
Calories: 415kcal

Ingredients

  • 2 mackerel fillets skin on (about 12 ounces total)
  • 1 teaspoon coarse sea salt
  • 1 tablespoon avocado oil
  • 1 lemon wedge for serving
  • Dipping sauce: 1 tablespoon soy sauce, 1 teaspoon rice vinegar, pinch of gochugaru

Instructions

  • Rinse the mackerel and pat it very dry. Score the skin two or three times. Sprinkle both sides with the salt and let it rest for 20 minutes.
  • Pat the fillets dry again to remove the moisture the salt drew out.
  • Heat the oil in a nonstick or cast-iron skillet over medium heat. Lay the fillets skin side down and press gently for the first 30 seconds so they stay flat.
  • Cook for 5 to 6 minutes, until the skin is deep golden and crisp, then flip and cook 3 to 4 minutes more, until the flesh flakes easily.
  • Serve with a lemon wedge and the dipping sauce.

Notes

Most of the work happens on the skin side, so resist the urge to move the fish around. Mackerel can smell strong when cooked indoors; open a window or use the broiler with a foil-lined pan.
Chef's Tip: If your mackerel is already salted (it is often sold that way in Korean markets), skip the salting step and just pat it dry.
Keto Swap: No changes needed. Serve it the Korean way with kimchi, a soup and cauliflower rice in place of white rice.
Success Tip: Pick out the bones for younger eaters, and serve with mild banchan like gyeran-mari or seasoned spinach.
Nutrition is calculated from the ingredients and is an estimate per serving. Net carbs exclude fiber and allulose.

Nutrition

Serving: 1serving | Calories: 415kcal | Protein: 32g | Fat: 31g | Fiber: 0.1g
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Cooking Korean Godeungeo-gui in the kitchen

About This Dish

Mackerel has long been one of Korea’s most common fish, often nicknamed the "national fish," and it regularly tops surveys of Koreans’ favorite seafood. Before refrigeration, mackerel from the coast was heavily salted so it could survive the journey inland. The inland city of Andong became famous for its salted mackerel, called Andong gan-godeungeo, and the story goes that the fish was perfectly cured by the time it arrived. Grilled mackerel restaurants are common in Seoul, often serving it alongside a full spread of banchan.

Pairs Well With

This recipe is from The Ultimate Korean Keto Cookbook by Gisele Costello, Chapter 4: Seafood (Jagalchi Fish Market). See all Korean recipes

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