2lb / 908g medium sized Maris Piper potatoes
Fry Light spray
Crushed sea salt and malt vinegar [optional]

Method:
1. Preheat the oven to 240°C/475°F/Gas 9. Peel the potatoes using a potato peeler and grey blemishes or 'eyes'. Slice lengthwise into approx ½in/1cm thick rectangular chips.

2. Bring a large saucepan of salted water to the boil. Add the chips and cook for 4 minutes. Drain and leave aside for 10 minutes to dry.

3. Return the chips to the dry saucepan, cover with a lid and shake to 'rough up' the edges of the chips - this roughness is important to the texture of the chips.

4. Spray a metal baking tray with Fry Light. Transfer the chips to the tray, spray lightly with Fry Light and bake in the oven for 20-25 minutes, turning occasionally, until golden brown on all sides. Drain them on absorbent kitchen paper and serve with salt and vinegar.