Lightly grease a baking dish with cooking spray. Set aside.
In a bowl, place 1½ cups of cheese and cornstarch and mix well. Set aside.
In a separate bowl, place the remaining cheese, whipping cream and macaroni and mix well.
Transfer the macaroni mixture into the prepared baking dish.
With a piece of foil, cover the baking dish.
Slide the Air Fryer Basket inside and adjust the temperature to 310 °F to preheat for 5 minutes.
After preheating, arrange the baking dish into the Air Fryer Basket.
Slide the basket into Air Fryer and set the time for 25 minutes.
After 15 minutes, remove the foil and top the macaroni mixture with cornstarch mixture.
After cooking time is finished, remove the baking dish from Air Fryer and set aside to cool slightly before serving.