
Aji Fry (Japanese Crispy Fish Cutlets)
Aji Fry (deep-fried horse mackerel coated in panko) is a timeless staple of Japanese seafood and a beloved everyday comfort food.
The Charm of Aji Fry
If you love Tonkatsu (Japanese pork cutlet), you absolutely need to try Aji Fry. “Aji” means horse mackerel, a flavorful, nutrient-rich fish. To make it, the fish is butterflied or filleted, coated in light and airy panko breadcrumbs, and deep-fried to flawless golden perfection. The magic lies in the incredible contrast of textures: shattering-crisp on the outside, yet incredibly fluffy, juicy, and tender on the inside. Unlike heavier meat cutlets, it feels remarkably light and savory.
About Aji (Horse Mackerel)
Aji is a staple aoz魚 (blue-backed fish) in Japanese home cooking. While available year-round, its peak season is from May to August, with June and July offering the absolute best flavor. This recipe uses Ma-aji (Chub mackerel/Japanese jack mackerel), the most popular variety in Japan.
- Nutrition: Relatively low in fat for a blue-backed fish, it is packed with heart-healthy unsaturated fatty acids like DHA and EPA (which help lower cholesterol and prevent high blood pressure). It is also rich in taurine for blood pressure regulation and potassium to help eliminate excess sodium.
📊 NUTRITION FACTS (Per 2 Servings)

Estimated based on standard deep-frying oil absorption rates (Flour 3%, Egg 8%, Panko 15%, Oil 15%).
- Calories: 527 kcal
- Protein: 36.6 g
- Fat: 34.4 g
- Carbohydrates: 21.9 g
- Salt Equivalent: 2.4 g
🛒 INGREDIENTS (2 Servings)
- Horse mackerel (Ma-aji fillets): 6 pieces (approx. 160g total) ※Look for pre-filleted/deboned pieces at the store.
- Salt: 1.5g
- Flour: 25g
- Water: 30g
- Egg: 50g (1 large egg)
- Panko breadcrumbs: 40g
- Cooking oil: Moderate amount for deep-frying
- Sauce of your choice: 10g
- Worcestershire sauce: The classic choice, offering a tangy kick.
- Chuno sauce: Slightly sweeter and thicker, which helps keep the breading from getting soggy.
🍳 COOKING INSTRUCTIONS
1. Prep the Fish
Thoroughly pat the surface of the fish fillets dry with a paper towel. Gently rub the salt into the fish.
2. Make the Batter
In a bowl, mix the flour and water first, then add the beaten egg and whisk well until there are no lumps. Make sure to follow this exact order to ensure a perfectly smooth batter.
3. Coat with Panko
Spread the panko breadcrumbs evenly across a tray. Dip each fish fillet into the batter, then place it onto the panko. Sprinkle more panko over the top until the fish is completely and evenly covered.
💡 Pro-Tip for Perfect Breading: The most common mistake when making fried food is the breading sliding off because it didn’t adhere properly. Once you’ve covered the fish in panko, don’t touch it! Place the tray straight into the refrigerator and let it rest for 20 minutes. This quick extra step helps the coating stick beautifully and prevents it from peeling off while frying.
4. Fry to Perfection
Heat the oil to 170°C (340°F). Hold the fish gently by the edge and slide it carefully into the hot oil. Fry until it turns a beautiful, uniform golden brown.
5. Finish & Serve
Drain the excess oil thoroughly on a wire rack or paper towels. Serve immediately while it is still piping hot and perfectly crunchy! Drizzle with your preferred sauce.
📖Read the Japanese version of this article here! [【10分で完成】誰でも簡単!サクサク衣のアジフライ決定版レシピ]


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