In a bowl, add the rutabaga sticks and cornstarch and toss to coat well.
Now add the oil in bowl and again, toss to coat well.
Grease the Air Fryer Basket with cooking spray and then slide inside.
Adjust the temperature of Air Fryer to 356 °F to preheat for 5 minutes.
After preheating, arrange the rutabaga sticks into the greased Air Fryer Basket in a single layer.
Slide the basket into Air Fryer and set the time for 18-22 minutes.
While cooking, shake the basket after every 3-4 minutes.
After cooking time is finished, remove the rutabaga fries from Air Fryer and serve hot.