Japanese Korokke Potato Croquette

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Korokke are golden, crispy Japanese-style potato croquettes inspired by the French côtelette and beloved as a comforting yōshoku staple. A creamy mashed potato filling studded with savory ground beef and sweet onion is shaped into patties, coated in panko, and fried until shatteringly crisp. Serve them piping hot with tangy tonkatsu sauce and a mound of finely shredded cabbage for the classic izakaya experience.

Nutrition Facts

Per serving (estimated)

• 520 kcalCalories
• 28 gFat
• 7 gSaturated Fat
• 52 gCarbs
• 4 gFiber
• 4 gSugar
• 16 gProtein
• 480 mgSodium
• 820 mgPotassium
• 75 mgCalcium
• 3 mgIron
• 18 mgVitamin C
• 120 mcgVitamin A

Ingredients

For the potato filling

• 2 lbs (about 4 large) Yukon Gold potatoes, peeled and cut into 2-inch chunks
• 1 tbsp unsalted butter
• 1/2 tsp kosher salt, plus more for the boiling water
• 1/4 tsp freshly ground black pepper
• Pinch of ground nutmeg

For the meat mixture

• 2 tbsp neutral oil (such as canola or vegetable)
• 1 medium yellow onion, finely diced (about 1 cup)
• 8 oz ground beef (or beef-pork blend)
• 1/2 tsp soy sauce

For coating and frying

• 1/2 cup all-purpose flour
• 2 large eggs, beaten with 2 tbsp cold water
• 1 1/2 cups panko breadcrumbs
• 2 cups neutral oil, for shallow frying (about 350°F)

For serving (optional)

• 1 1/2 cups finely shredded green cabbage
• Tonkatsu sauce or Worcestershire sauce, for dipping
• Japanese karashi mustard or Dijon mustard

Directions

1. Place the peeled and chunked potatoes in a large pot, cover with cold salted water by 1 inch, and bring to a boil. Reduce heat and simmer gently for 12 to 15 minutes, until a fork slides easily through the largest piece. Drain well and return to the hot pot for 1 minute to dry out the surface moisture.
2. While the potatoes cook, heat 2 tablespoons of oil in a medium skillet over medium heat. Add the diced onion and cook for 4 to 5 minutes until soft and translucent, then add the ground beef, breaking it up with a spatula, and cook for 5 to 6 minutes until browned. Stir in the soy sauce, then transfer the mixture to a large bowl and let cool slightly.
3. Pass the drained potatoes through a ricer or mash them thoroughly with a potato masher until smooth. Stir in the butter, salt, pepper, and nutmeg until the butter melts and the seasonings are evenly distributed, then fold in the cooled beef-and-onion mixture until just combined. Taste and adjust seasoning; the mixture should hold its shape when pressed.
4. Scoop about 1/2 cup of the potato mixture and shape it into a 3-inch-wide, 3/4-inch-thick oval patty with damp hands. Repeat with the remaining mixture to make 8 patties, placing them on a parchment-lined tray as you work.
5. Set up a three-station breading line: one shallow bowl with the flour, one with the beaten egg, and one with the panko. Lightly coat each patty in flour and tap off the excess, dip it fully in the egg, then press firmly into the panko so the crumbs adhere all over. Place the breaded croquettes back on the tray and refrigerate for at least 15 minutes to set the coating.
6. Heat about 1/2 inch of oil in a heavy skillet (preferably cast iron) to 350°F (175°C). Fry the croquettes in batches of 2 to 3, without crowding, for about 2 minutes per side until deep golden brown and crisp all over. Transfer to a wire rack (not paper towels) so the bottoms stay crunchy, and let rest 1 minute before serving.
7. Serve the korokke immediately on warm plates alongside a small mound of shredded cabbage and a small dish of tonkatsu sauce for dipping. A dab of karashi or Dijon mustard on the cabbage adds a traditional sharp bite.

Cook’s Notes

• Chill the shaped patties for at least 15 minutes before breading and again after breading; this helps the coating stay intact during frying and prevents the croquettes from splitting.
• Always use panko rather than standard breadcrumbs; the larger, flakier crumbs create the signature crackly, light crust that defines authentic korokke.
• Maintain oil temperature at 340 to 350°F; too cool and the croquettes absorb oil and turn greasy, too hot and the coating browns before the filling warms through.
• Rest finished croquettes on a wire rack rather than paper towels so steam can escape and the bottom crust stays crisp.
• For variation, swap half the potato for mashed kabocha squash, or replace the beef with flaked tuna, finely chopped hard-boiled egg, or curry-seasoned vegetables for a popular kuri korokke twist.

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