Bring a pan of salted water to the boil. Add the macaroni and cook for 6 minutes, then drain.
While the pasta cooks, pour the evaporated milk into a large saucepan and put over a medium heat. Once simmering, add the cheddar and whisk until melted.
Add the pasta to the cheese sauce, season with a pinch of salt and pepper, then transfer to a baking dish which fits inside your air fryer.
Heat your air fryer to 180°C. Top the pasta with the grated parmesan or pecorino, then cook for 12 minutes until golden and bubbling on top