Add a kick to your air fryer french fries with a spicy Cajun seasoning. Cut the potatoes into thin strips and toss them with olive oil, Cajun seasoning, salt, and pepper. Preheat the air fryer to 400°F (200°C) and cook the fries in a single layer for 15-20 minutes, shaking the basket halfway through. Serve these flavorful fries with a side of ranch or blue cheese dressing for dipping.