Dry pork belly skin with paper towel.
Leave uncovered in the fridge overnight if you can.
Wipe salt & any moisture off with paper towel and rub olive oil
on skin. Then give the skin another sprinkle of salt
Pre heat air fryer on 220°C for 5 minutes.
Cook pork for 30 minutes on 220°C and then turn down air fryer
to 170°C and cook for a further 30 minutes.
Rest for 5-10 minutes before serving.