Straight from the freezer at 200C with two shakes, and no oil at all. They were fried once before they were frozen, so anything you add just sits on the outside.
Do not add oil. Standard frozen chips have already been part-fried in oil before freezing, which is why they colour so quickly, and a further tablespoon has nowhere to go except onto the outside as grease.
Do not let them thaw either. The frost on the surface is what protects the outside while the middle comes up to temperature, and a thawed chip goes limp before it browns.
Heat the air fryer to 200C/400F for 3 minutes.
Tip the chips in and spread them out, no more than two deep.
400g is about the limit of a 4-litre basket. Doubling it does not double the cooking time, it stops the method working: the basket fills with steam and the chips come out pale and bendy.
Cook for 6 minutes, then shake the basket hard.
Cook for another 5 minutes and shake again.
Cook for a final 2 to 4 minutes.
They are done when they are golden with darker edges and clatter rather than thud as the basket moves. Shoestring fries are there at about 11 minutes and steak-cut chips nearer 18 — the packet's oven time is a useful guide, and roughly two-thirds of it is a good starting point.
Aim for gold rather than brown. Starchy food browned hard develops acrylamide, and the standing UK advice on chips is the lightest gold that still tastes cooked.
Tip them into a bowl and toss with the flaky salt while they are hot enough for it to stick.
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Potato and salt, with a distinctly fried note underneath that home-cut air fryer chips do not have — that is the factory's oil, and it is the one advantage the frozen version has over the fresh one in this machine. Coated chips add a savoury, faintly wheaty flavour from the shell. There is often a background sweetness, because the potatoes used for freezing are chosen and treated for low sugar and then blanched, and what remains reads as mild and clean.
Very little for the first six minutes, and then quite suddenly the smell of chips — the fat already in them starts to move at around eight minutes and the change is abrupt. It is a more recognisably fried smell than home-cut chips produce, for the same reason.
More uniform than a home-cut chip and slightly less interesting for it: an even, thin, crisp shell over a soft, fine, slightly mealy interior. There is less variation between pieces and less of the ragged, cragged surface a hand-cut chip has, which is a fair trade for a fourteen-minute total and no washing up. They hold their crispness for a few minutes longer than home-cut chips, again because of the shell.
The basket is the whole instrument here. Frozen chips going in sound like gravel; at six minutes the shake is dull and heavy; by fourteen the sound has gone light and clattering, and that change is the most reliable doneness test in the recipe. A finished chip snaps audibly.
Salt first, sitting on the outside, then the fried note from the shell, then the plain interior, and almost nothing afterwards. The absent finish is why chips are eaten with vinegar, ketchup or mayonnaise — the dish is designed around being interrupted.
Eaten immediately. They deteriorate noticeably within five minutes and are gone within fifteen.
Anything they are traditionally beside: fish, a burger, eggs. Malt vinegar, ketchup, mayonnaise, or the sauce from patatas bravas if you want to make more of them than they are.
The simplest recipe in the collection, with one instruction people routinely get wrong.
Very low.
An air fryer. Nothing else, not even a bowl until the end.
A Tuesday.
None.
Golden with darker edges and corners, and visibly shrunken and faceted rather than smooth. Nothing should be dark brown. If a chip bends under its own weight when lifted, it needs another two minutes.
A thin dry crust that snaps, over a soft floury interior. Frozen chips give a slightly thicker, more uniform crust than home-cut ones, because the part-fry built one before they were ever frozen.
Nothing unusual. Do not refreeze thawed chips, and do not leave a bag out of the freezer while the machine preheats. One thing worth knowing about any potato cooked hot: acrylamide forms in starchy food at high temperatures, and the UK Food Standards Agency advises cooking chips and roast potatoes to the lightest gold colour you find acceptable rather than to a deep brown. That advice is precautionary — acrylamide is classed as a probable human carcinogen largely on animal evidence, and the human evidence at the levels found in food is much less settled than the firmness of the advice suggests. It is worth following because it costs nothing and the colour it asks for is the better chip anyway.
Pale and bendy: overloaded basket, or thawed chips, or both. Greasy: oil was added. Burnt tips, soft middles: coated chips cooked on plain-chip timings. Uneven, some pale some dark: not shaken enough. Stuck together in clumps: they were part-thawed and refroze in the bag.
Nothing to prepare and nothing that waits.
None. They have a life of a few minutes.
Three minutes at 200C/400F recovers some of it.
They arrived frozen. Do not refreeze cooked ones.
Chop into a hash rather than reheating and expecting chips.
400g is about the limit of a 4-litre basket. Doubling the quantity means two runs, not a longer time, and this is the recipe where that mistake is made most often.
Any frozen potato product works with a time adjustment: shoestring fries around eleven minutes, standard chips fourteen, steak-cut nearer eighteen, wedges and roast potatoes longer again. Coated or battered chips have a starch or wheat shell that colours faster — take two minutes off and check early.
Plain frozen chips are usually vegan, but not always: the oil used for the part-fry has historically included beef dripping in some products, and coated varieties frequently contain wheat. Nothing about this can be assumed and the packet is the only authority.
Thicker cuts hold their interior better and are more forgiving of an extra two minutes. Bags that rattle freely have not thawed and refrozen; bags with a solid clump inside have, and those chips will never crisp properly.
Supermarket own-brand plain chips behave identically to branded ones in this method, since almost all of the difference is in the cut and the coating.
A frozen product carries the energy cost of freezing and of cold storage all the way along the chain, which is real. Against that, an air fryer uses considerably less energy to cook them than an oven does.
Contains the fat absorbed during the factory part-fry, which is not nothing, but far less than the same chips deep fried at home. No fat is added here at all.
Fourteen minutes, no oil, no washing up, and better than the oven. There is not much more to say about it, and recipes that say more are padding.
No origin worth claiming for the method. The product is mid twentieth-century industrial food.
Commercially frozen chips depend on two industrial steps: a part-fry in oil, which sets the surface and precooks the interior, and rapid freezing, which keeps the ice crystals small enough not to destroy the potato's structure. The category grew rapidly through the second half of the twentieth century alongside domestic freezers, and frozen chips are now among the most widely sold frozen foods anywhere. Air frying them is a development of the last fifteen years and is now, plausibly, the most common single use of the appliance.
Not a dish with cultural weight — but genuinely, the thing more air fryers cook than anything else, which is worth stating plainly rather than pretending the appliance is mostly used for something more interesting.
Any evening where nobody wants to cook.
The packet says a hot oven on a tray for twenty minutes. The air fryer does it faster and browns the undersides, which a tray does not.
It says not to add oil and explains why, which most published versions of this recipe do not — several of them recommend a spray of oil, which is the opposite of what a part-fried product needs.