Peel and cut the potatoes into thin strips.
Soak the potato strips in cold water for at least 30 minutes.
Drain and pat the potatoes dry.
Toss the potatoes with olive oil, sea salt, and black pepper.
Preheat the air fryer to 380°F (190°C).
Place the potatoes in a single layer in the air fryer basket.
Cook for 15-20 minutes, shaking the basket halfway through.
Check for doneness; they should be crispy and golden brown.
Remove the fries and let them cool for a few minutes.
Serve hot and enjoy!