Sainsbury's triple cooked chips, taste the difference 900g. They cook in their own fat so I wouldn't use a baking tray too big otherwise may make a mess of the oven if the fat spreads across it. I don't eat chips often but they were very nice when I tried a bag.
'We make this chunky triple cooked chips with British Maris Piper potatoes, the classic chip variety. We blanch them first for light, fluffy centres, then fry them in crisp golden batter. Then we baste them with savoury beef dripping for exceptional crunch and flavour...'