Cut the potatoes into thin strips or wedges, ensuring they're roughly the same size for even cooking.
Soak the potato strips in cold water for about 30 minutes, then drain and pat dry thoroughly with paper towels.
Toss the potato strips with olive oil and salt until evenly coated. Preheat your air fryer to 380°F (190°C).
Place the potato strips in the air fryer basket in a single layer, making sure they're not overcrowded.
Cook for about 15-20 minutes, shaking the basket halfway through, until the fries are golden brown and crispy.
Serve hot with ketchup or your favorite dipping sauce.