Apple Chips

Doneness

The slices should be dried out, their edges curled, and the surface no longer wet or sticky — they will still feel slightly bendy when hot and crisp up fully as they cool, so judge by dryness, not by snap-in-the-basket. Slices that are still soft and damp in the middle need more time; slices browning hard and fast at the edges mean the temperature is too high — drop it and slow down. For shatter-crisp chips, leave them in the turned-off air fryer for a few minutes after cooking.

Oil & seasoning

None — apple chips are dry-cooked, not oiled. A light spritz of lemon juice on the cut slices keeps them from browning, and a dusting of cinnamon (or cinnamon-sugar) before cooking is optional.

Season with: Plain (the benchmark): nothing but the apple — a sweet-tart crisp that lets the variety's own flavour show., Cinnamon: dusted with ground cinnamon before cooking for classic spiced apple chips., Cinnamon-sugar: tossed in a little sugar and cinnamon for a sweeter, candied-edge chip., Caramel-spice: dusted with a pinch of cinnamon, nutmeg, and a touch of brown sugar for a caramel-apple note..

Watch out for

• !Slice thin and even — about ⅛ inch (3 mm), ideally on a mandoline. Thick or uneven slices stay chewy in the middle while the thin edges scorch.
• !Cook low and slow: high heat browns the edges before the centre dries. 300 °F (149 °C) is the ceiling; some air fryers do better at 250–280 °F for a few extra minutes.
• !Single layer, no overlap — stacked slices steam and fuse instead of drying.
• !They firm up as they cool, so pull them while still slightly flexible rather than waiting for them to crisp in the basket (overcooking turns them bitter and brittle).
• !A light spritz of lemon juice keeps the slices from oxidising to brown before they cook.