In that respect, air fryer onion rings are much healthier than deep fried, even if the batter is the exact same. There's also the clean-up involved. Because air fryers use hot air instead of oil ...

These can be baked in the oven or made in an air fryer – either way they’re healthier than traditional deep-fried onion rings. Preheat the oven to 200C/180C Fan/Gas 6, or the air fryer to 180C.