Easy Japanese Korokke (Potato Croquettes)

Name: Easy Japanese Korokke (Potato Croquettes)
Prep time: 30 min
Cook time: 15 min
Total time: 45 min
Ingredients: 6 medium russet potatoes; vegetable oil (or any neutral oil, for frying); 1 cup yellow onion (finely diced); 1 tsp salt; 1 tsp garlic powder; 1/4 tsp black pepper; 2-3 tsp curry powder; 2 large eggs (beaten); 1/4 cup cornstarch ((add more if needed)); 1.5 cups panko breadcrumbs ((add more if needed)); tonkatsu sauce (store-bought)

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Golden, crispy Japanese potato croquettes coated in crunchy panko breadcrumbs with a soft, fluffy potato and onion filling. This easy korokke recipe is budget-friendly and made with simple ingredients. I use Russet potatoes for their naturally fluffy texture, giving these crispy croquettes a deliciously light interior!

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Ingredients & Substitutes
Expert Tips
Instructions
Storage & Reheating
Variations
Pairing Suggestions
FAQ
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📖 Recipe

Korokke (コロッケ) are Japanese-style potato croquettes coated in panko breadcrumbs and deep-fried until golden and crispy.

They're a popular Japanese comfort food commonly found at convenience stores, supermarkets, and street food stalls throughout Japan. They're best enjoyed as a snack or appetizer with tonkatsu sauce.

I'll never forget trying korokke for the first time. I loved the crispy coating and fluffy potato filling! That experience inspired me to create this simple version at home.

When I make these, I chill the shaped croquettes so they firm up and hold together better during breading and frying. I also fry them in small batches at a consistent oil temperature to create a beautifully golden, crispy panko coating.

Ingredients & Substitutes

Exact ingredient measurements are in the recipe card below.

Russet Potatoes: These high-starch potatoes are ideal for korokke because their fluffy, relatively dry flesh creates a light filling that holds its shape when formed into patties. I recommend using Russet or Idaho Russet potatoes for the best texture.
Vegetable Oil: Or use a neutral oil with a high smoke point, such as canola or refined avocado oil.
Yellow Onion: Adds a mild sweetness and savory flavor to the potato filling when sautéed. White onion also works.
Salt, Black Pepper and Garlic Powder
Curry Powder: Adds a mild curry flavor to the potato filling. Use Japanese curry powder or regular yellow curry powder.
Cornstarch: Creates a dry surface for the egg wash to adhere to. Potato starch or all-purpose flour also works.
Eggs: Help the panko breadcrumbs adhere to the potato patties during breading.
Panko Breadcrumbs: Use unseasoned Japanese-style breadcrumbs for a light, crispy coating.
Tonkatsu Sauce: Serve with store-bought tonkatsu sauce. Choose a vegetarian or vegan version if needed.

Expert Tips

Drain the potatoes thoroughly. Remove excess water after boiling so the filling isn't too wet or difficult to shape.
Mash the potatoes while hot. Hot potatoes are easier to mash, helping you achieve a smooth, fluffy filling.
Don't over-mash the potatoes. Gently mash until mostly smooth, leaving a little texture to prevent the filling from becoming gummy.
Shape the croquettes firmly. Press the potato mixture together so the patties hold their shape during breading and frying.
Use a cooking thermometer. Keep the oil between 325-350°F for even browning and a crispy coating without excessive oil absorption.
Drain on a wire rack. Arrange the fried korokke in a single layer so trapped steam doesn't soften the crispy panko coating.

Instructions

Below are instructions on how to make korokke:

Quartered potatoes boiling in a large pot of water until fork-tender.

Boil the Potatoes: Peel and quarter the medium potatoes. Bring a large pot of water to a boil over medium-high heat. Add the potatoes and boil for about 15 minutes until fork-tender. Drain thoroughly and transfer to a large mixing bowl.

Diced sautéed onions with potatoes in a large mixing bowl with seasoning.

Cook the Onions: Heat 1 tablespoon (15 ml) vegetable oil in a pan over medium heat. Sauté the onions until softened and translucent, making sure any excess liquid has fully evaporated. Add them to the potatoes along with the salt, garlic powder, black pepper, and curry powder, if using.

Cooked potatoes and sautéed onions being mashed together with seasonings.

Mash the Potatoes: Gently mash the potatoes and onions until mostly smooth and combined, leaving a little texture. Avoid over-mashing, which can make the filling gummy. Divide the mixture into 8 equal portions and let the portions cool slightly until comfortable to handle.

Oval-shaped Japanese potato croquettes arranged on a tray before chilling.

Shape and Chill: Firmly shape each portion into a compact, oval-shaped patty, pressing out any gaps so it holds together. Arrange on a tray or large plate and refrigerate uncovered for 15 minutes to firm up before breading.

Potato croquettes being coated in cornstarch, beaten eggs, and panko breadcrumbs.

Coat the Croquettes: Prepare three shallow plates: one with cornstarch, another with beaten eggs, and the last with panko breadcrumbs. Coat each patty in cornstarch, shaking off the excess. Dip into the beaten eggs, letting the excess drip off, then coat all sides evenly with panko breadcrumbs, gently pressing to help them adhere.

Panko-coated Japanese potato croquettes frying in hot oil until golden and crispy.

Deep-Fry the Korokke and Serve: Heat 2 inches of vegetable oil in a deep, heavy-bottomed pot to 325-350°F. Carefully add the croquettes in small batches without overcrowding. Fry for about 3-4 minutes, flipping halfway, until golden brown and crispy. Transfer to a wire rack in a single layer to drain. Allow the oil to reheat between batches. Serve the crispy korokke immediately with tonkatsu sauce.

Storage & Reheating

Refrigerator: Let the cooked korokke cool completely before storing in an airtight container in the refrigerator for up to 4 days.
Freezer: Let the cooked korokke cool completely before transferring to a freezer-safe bag or container. Freeze for up to 2 months.
Reheating: Place the korokke on a parchment-lined baking sheet and reheat in the oven at 350°F for 15-20 minutes if thawed or about 45 minutes if frozen, until heated through and crispy. No thawing is necessary. Avoid microwaving, as it will soften the panko coating.

Variations

Meat Korokke: Mix in 3⁄4 cup of cooked, drained ground beef, pork, or chicken. Season the meat with curry powder for extra flavor.
Cheese Korokke: Place a small cube of cheese in the center of each potato patty before shaping. Seal the potato mixture completely around the cheese to prevent it from leaking during frying.

Pairing Suggestions

Serve korokke with:

Japanese Crab Corn Salad: A creamy, refreshing salad that complements the crispy korokke.
Japanese Curry Chicken: Tender chicken in a savory curry sauce makes a hearty meal alongside korokke.
Miso Soup: A warm, savory soup that complements the crispy croquettes.

FAQ

Can I bake or air fry korokke instead of deep-frying?

Yes! For baking, lightly spray the breaded korokke with oil and bake at 400°F for 15-20 minutes, flipping halfway, until golden and crispy. For air frying, lightly spray with oil and air fry at 375°F for 10-12 minutes, flipping halfway. The coating may be lighter in color and less crispy than deep-fried korokke.

Why are my korokke falling apart during frying?

The potato filling may be too wet, the patties may not be packed firmly enough, or they may not have chilled long enough. Drain the boiled potatoes thoroughly, shape the patties firmly, and refrigerate for 15 minutes before breading.

Can I prepare korokke ahead of time?

Yes! Shape and bread the croquettes, then refrigerate them in a single layer in an airtight container for up to 24 hours before frying. Keep them chilled until you're ready to cook.

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