While the air fryer is heating, in a large bowl, add the macaroni noodles, half and half, Velveeta, 1 cup of the shredded cheddar, butter, garlic powder, black pepper, onion powder, cayenne (if using), and salt.
Stir to combine.
Spray an air fryer baking dish with cooking spray and pour the mixture into the dish.
Air fry for 15-18 minutes (please see my note below about cook times).
Stir every 5 minutes to incorporate the ingredients together.
Add the remaining shredded cheese evenly on top.
Air fry an additional 2-3 minutes until melted and slightly browned. Serve immediately.
Notes
Please note: there are so many different types of air fryers out there these days and some of them may cook slower or faster than the one I am using (depending on their size, shape, air circulation, heating element, etc.) So please bear that in mind. The cook time is only an estimate based on the one I used. Please check your noodles for doneness before turning off your air fryer. The best time to check your noodles is after you stir them each time (this also helps the noodles to cook evenly).
You can use milk, just make sure it is not skim.
You do not need to cook the noodles before hand.
Use your favorite cheese, just make sure that it is freshly shredded.
Use any oven proof pan for this recipe. It will work in the air fryer. Just make sure it is deep enough and fits into your air fryer basket.