01 - Submerge the cut potato sticks in cold water for at least 30 minutes up to 2 hours to remove excess starch. Drain thoroughly.
02 - Pat the soaked potatoes completely dry using clean kitchen towels or paper towels to ensure crispness.
03 - Preheat the air fryer to 400°F (200°C) for 3 minutes.
04 - In a large bowl, toss dried potato sticks with olive oil, 1 teaspoon fine sea salt, and optional seasonings until evenly coated.
05 - Place the fries in a single layer in the air fryer basket without overcrowding. Cook in batches if needed.
06 - Cook for 15 to 20 minutes, shaking the basket every 5 minutes, until fries are golden and crisp. Adjust cooking time based on desired texture and thickness.
07 - Immediately sprinkle with flaky sea salt and serve hot.