These onion chips get their crunch from a spoonful of cornstarch mixed into the flour, which makes a thinner coating that browns faster in the air fryer than flour alone. Slice the onions into thick rings, shake them in a bowl with the seasoned flour, then add just enough olive oil to help the coating cling. Cook at 180°C (350°F) for 15 minutes, shaking the basket halfway. Keep the rings in a single layer; crowded pieces steam and turn soft instead of crisp. The edges should look dry and deep golden when they are done. Leave out the cayenne if you prefer them mild.
Instructions
- 1
Slice onions into thick rings and place in a bowl. Add flour, corn starch, paprika, salt, and cayenne.
- 2
Drizzle in olive oil, close the bowl and shake to coat everything evenly.
- 3
Spread in the air fryer basket. Cook at 180°C / 350°F for 15 minutes, shaking halfway through for even crunch.
15:00
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Frequently Asked Questions
Why aren’t my onion chips crispy?
Slice the rings thin and even, and don’t overcrowd the basket — overlapping rings steam instead of crisping. Cook in a single layer at 180°C and shake halfway so every side meets the hot air.
What does the cornstarch do?
Cornstarch mixed into the flour creates a thinner, crisper coating that browns faster than flour alone — the same trick that gives fried foods a light, shatteringly crunchy shell.
How spicy are they, and can I tone it down?
The cayenne adds a gentle warm kick. Leave it out for mild chips, or swap in smoked paprika for smoky depth without the heat. Add more cayenne if you like them fiery.
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