Japanese Fish Katsu Curry With Crispy Panko Cutlets

Quick Recipe Version (TL;DR)

• Yield: 4 servings
• Prep Time: 25 minutes
• Cook Time: 40 minutes
• Total Time: 1 hour 5 minutes

Quick Ingredients

• 2 cups (400 g) Japanese short-grain rice + 2 1/2 cups (600 ml) water
• 2 tbsp (30 ml) neutral oil (for curry)
• 1 medium yellow onion, diced (about 1 1/2 cups / 225 g)
• 2 medium carrots, sliced (about 1 cup / 130 g)
• 2 medium Yukon Gold potatoes, 3/4-inch cubes (about 3 cups / 450 g)
• 2 cloves garlic, minced
• 1 tsp (2 g) grated fresh ginger
• 4 cups (960 ml) low-sodium chicken or vegetable broth
• 3.5 oz (100 g) Japanese curry roux blocks (mild)
• 1 tbsp (15 ml) soy sauce + 1 tbsp (15 ml) ketchup + 1 tsp (5 ml) honey
• 4 white fish fillets (cod, haddock, pollock), 5–6 oz (140–170 g) each
• 1/2 tsp kosher salt + 1/4 tsp black pepper
• 1/2 cup (60 g) all-purpose flour
• 2 large eggs
• 2 cups (100 g) panko breadcrumbs
• Neutral oil for deep-frying (about 6 cups / 1.4 L), heat to 350°F (175°C)
• Optional garnish: thinly sliced scallions; fukujinzuke (Japanese pickles)

Do This

• 1. Rinse rice until water runs mostly clear; cook with 2 1/2 cups water, then rest 10 minutes.
• 2. Sauté onion in 2 tbsp oil for 6–8 minutes; add carrots, potatoes, garlic, ginger for 1 minute.
• 3. Add broth; simmer partially covered 15–20 minutes until vegetables are tender.
• 4. Turn off heat; whisk in curry roux until smooth. Simmer 5 minutes; stir in soy sauce, ketchup, honey.
• 5. Season fish; dredge in flour, dip in egg, press into panko.
• 6. Fry at 350°F (175°C) for 3–4 minutes per side (or until 145°F/63°C inside); drain on a rack.
• 7. Slice fish; serve over rice and ladle curry on top. Garnish with scallions and pickles.

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Why You’ll Love This Recipe

• Peak comfort food: mild, velvety Japanese curry plus shatteringly crisp panko fish.
• Weeknight-friendly: curry simmers while you bread the fish, so everything comes together smoothly.
• Restaurant-style texture at home: the simple flour-egg-panko coating delivers a crunchy crust that stays crisp.
• Flexible: use your favorite white fish, adjust thickness, and keep the curry mild (or nudge it spicier).

Grocery List

• Produce: 1 yellow onion, 2 carrots, 2 Yukon Gold potatoes, 2 garlic cloves, fresh ginger, scallions (optional)
• Seafood: 4 white fish fillets (cod, haddock, pollock), 5–6 oz (140–170 g) each
• Dairy: none
• Pantry: Japanese short-grain rice, neutral oil (canola/grapeseed/vegetable), all-purpose flour, panko breadcrumbs, Japanese curry roux blocks (mild), low-sodium broth, soy sauce, ketchup, honey
• Optional: fukujinzuke (Japanese pickles)

Full Ingredients

For the Rice

• 2 cups (400 g) Japanese short-grain rice
• 2 1/2 cups (600 ml) water

For the Japanese Curry (Mild)

• 2 tbsp (30 ml) neutral oil (canola, grapeseed, or vegetable)
• 1 medium yellow onion, diced (about 1 1/2 cups / 225 g)
• 2 medium carrots, sliced into 1/4-inch (6 mm) rounds (about 1 cup / 130 g)
• 2 medium Yukon Gold potatoes, peeled (optional) and cut into 3/4-inch (2 cm) cubes (about 3 cups / 450 g)
• 2 cloves garlic, minced
• 1 tsp (2 g) grated fresh ginger
• 4 cups (960 ml) low-sodium chicken or vegetable broth
• 3.5 oz (100 g) Japanese curry roux blocks, mild (for example, S&B Golden Curry Mild)
• 1 tbsp (15 ml) soy sauce
• 1 tbsp (15 ml) ketchup
• 1 tsp (5 ml) honey

For the Fish Katsu

• 4 white fish fillets (cod, haddock, or pollock), 5–6 oz (140–170 g) each, about 3/4-inch (2 cm) thick
• 1/2 tsp kosher salt
• 1/4 tsp black pepper
• 1/2 cup (60 g) all-purpose flour
• 2 large eggs
• 2 cups (100 g) panko breadcrumbs
• Neutral oil for deep-frying (about 6 cups / 1.4 L, depending on pot size)

For Serving (Optional but Recommended)

• 2 tbsp thinly sliced scallions
• 4 tbsp fukujinzuke (Japanese pickles), or a small spoonful per bowl

Step-by-Step Instructions

Step 1: Cook the rice

Rinse the rice in a bowl with cool water, swishing with your hand, then drain. Repeat 3–4 times until the water runs mostly clear.

Add the rinsed rice and 2 1/2 cups (600 ml) water to a pot with a tight-fitting lid. Bring to a boil over medium-high heat, then immediately reduce to low and cover. Cook for 18 minutes.

Turn off the heat and let the rice steam, covered, for 10 minutes. Fluff with a rice paddle or fork and keep covered until serving.

Step 2: Start the curry base (onion first)

While the rice cooks, heat 2 tbsp (30 ml) neutral oil in a medium pot over medium heat. Add the diced onion and cook for 6–8 minutes, stirring often, until softened and lightly golden.

Add the carrots and potatoes and cook for 2 minutes, stirring to coat in the oil.

Step 3: Simmer the vegetables until tender

Add the minced garlic and grated ginger and stir for 30 seconds until fragrant.

Pour in the 4 cups (960 ml) broth. Bring to a gentle boil, then reduce to a simmer. Cover partially and simmer for 15–20 minutes, stirring occasionally, until the potatoes are easily pierced with a fork.

Step 4: Thicken with curry roux and finish the flavor

Turn the heat off (this helps the roux dissolve smoothly). Break the curry roux blocks into pieces and add them to the pot. Whisk and stir until completely melted and smooth.

Turn the heat back to low and simmer for 5 minutes, stirring frequently, until thick and glossy.

Stir in the soy sauce, ketchup, and honey. Keep the curry on very low heat, uncovered, while you fry the fish. If it gets too thick, loosen with 1–3 tbsp of hot water or broth.

Step 5: Set up the breading station and coat the fish

Place three shallow dishes on the counter: one with 1/2 cup (60 g) flour, one with 2 eggs beaten until smooth, and one with 2 cups (100 g) panko.

Pat the fish dry with paper towels (dry fish helps the coating stick). Season both sides with 1/2 tsp kosher salt and 1/4 tsp black pepper.

Coat each fillet in flour (shake off excess), dip in egg, then press firmly into panko, coating all sides. Set the breaded fish on a tray while the oil heats.

Step 6: Deep-fry the fish katsu until golden and crisp

In a heavy-bottomed pot or deep skillet, add neutral oil to a depth of 1 1/2 to 2 inches (4–5 cm) (about 6 cups / 1.4 L in many pots). Heat to 350°F (175°C). Use a thermometer for accuracy.

Fry 1–2 fillets at a time (don’t crowd the pot). Cook for 3–4 minutes per side, turning carefully with tongs, until deep golden brown and crisp.

The fish is done when the thickest part reaches 145°F (63°C) on an instant-read thermometer, and the coating is evenly browned.

Transfer to a wire rack set over a sheet pan (this keeps it crisp). Sprinkle with a tiny pinch of salt while hot. Let rest 2 minutes before slicing.

Step 7: Slice, plate, and curry everything generously

Scoop steamed rice into shallow bowls or plates. Slice each fish katsu into strips (about 3/4-inch / 2 cm wide) and arrange over the rice.

Ladle the hot curry over the rice and partly over the katsu (or keep some katsu exposed so the crust stays extra crisp).

Finish with sliced scallions and a spoonful of fukujinzuke on the side, if using. Serve immediately while the katsu is at its crunchiest.

Pro Tips

• Keep the crust crisp: drain fried fish on a wire rack, not paper towels (paper traps steam and softens the coating).
• Thermometer = confidence: hold the oil at 350°F (175°C). If the oil is cooler, the katsu absorbs oil; if hotter, the crust browns before the fish cooks through.
• Dry fish breads better: pat the fillets very dry before flouring to prevent bare spots and slippage.
• Don’t rush the roux: dissolve the curry roux with the heat off, then simmer gently to avoid lumps and scorching.
• Control curry thickness: curry thickens as it sits. Loosen with small splashes of hot broth or water, 1 tbsp at a time.

Variations

• Extra-crunchy katsu: swap in Japanese-style panko (larger flakes) and press firmly; rest breaded fish 10 minutes before frying to help the coating set.
• Oven/air-fryer option (less traditional, still tasty): spray breaded fish generously with oil. Air-fry at 400°F (205°C) for 10–12 minutes, flipping at 6 minutes, until 145°F (63°C).
• Make it spicier: use medium-hot curry roux, or stir in 1/2 tsp togarashi or cayenne at the end.

Storage & Make-Ahead

Curry: Cool, then refrigerate in an airtight container for up to 4 days. Reheat gently on the stove over low heat until bubbling hot (add a splash of water or broth to loosen). Curry also freezes well for up to 2 months (thaw overnight in the fridge before reheating).

Fish katsu: Best eaten right away. If you have leftovers, refrigerate for up to 2 days. Re-crisp on a wire rack in a 400°F (205°C) oven for 10–12 minutes (avoid microwaving if you want crunch).

Make-ahead strategy: Make the curry and rice ahead; fry the fish just before serving for the crispiest results.

Nutrition (per serving)

Approximate, based on 4 servings: 860 calories, 41 g protein, 104 g carbohydrates, 30 g fat, 5 g saturated fat, 4 g fiber, 14 g sugar, 980 mg sodium. Values vary by fish type, curry roux brand, and frying oil absorption.