Name: Crunchy Japanese Long Fries
Prep time: 35 min
Cook time: 15 min
Total time: 50 min
Yield: 4 servings
Cuisine: Other

Delicate Kitchen Verified

March 6, 2026

Japanese-style long fries are a fun twist on classic French fries – extra crunchy, perfectly seasoned, and shaped into long sticks that are great for dipping. This recipe uses just a few simple ingredients but delivers that addictive crispy bite. Serve them with ketchup, mayo, or even a sprinkle of parmesan for a street-food-style snack at home!

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Crunchy Japanese Long Fries

Delicate Kitchen Verified

Ingredients

Warning0 allergens identified

Instructions

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Cook the Potatoes

Boil 4–5 medium potatoes until soft. Peel and mash them until smooth. You should have about 630 g of cooked potato.

Mix the Dough

In a bowl, combine mashed potatoes with cornstarch and fry seasoning. Mix well until a smooth dough forms.

Shape the Fries

Line a flat dish or baking tray with parchment paper. Spread the potato mixture evenly and press it flat with another sheet of parchment paper. Freeze for about 20–30 minutes until firm but not fully frozen. This makes cutting easier.

Cut into Long Fries

Remove from the freezer, take off the parchment paper, and cut into long fry-shaped sticks.

Coat with Cornstarch

(Important Tip!) Roll each fry in cornstarch until fully coated. This prevents them from breaking apart while frying.

Fry the Fries

Heat oil to 170–180°C (340–355°F). Fry the long fries in batches for 3–4 minutes until golden and crispy.

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Tips & Tricks (5)

Double-Soak Starch Removal 💧
Soak cut potatoes in cold water for 30 minutes, then drain and soak again for another 30 minutes to remove excess starch, ensuring maximum crunchiness and preventing sogginess.
Cornstarch Coating Technique ✨
Pat potatoes completely dry, then toss with cornstarch before seasoning—this creates an extra-crispy exterior that stays crunchy longer than traditional fries.
Two-Temperature Frying Method 🌡️
Fry at 300°F first for 5-7 minutes to cook through, then increase to 375°F for 2-3 minutes for an ultra-crispy golden crust without a raw interior.
Seasoning While Hot 🧂
Apply French fry seasoning immediately after removing fries from oil while they're still steaming—the heat helps flavors adhere and penetrate better than seasoning cooled fries.
Oil Quality Matters 🫗
Use refined vegetable or peanut oil with a high smoke point (above 400°F) and change it regularly to prevent flavor degradation and ensure consistent crispy results every time.