Ultimate oven chips

• Maris Piper potatoes↗1kg g
• cider vinegar↗1 tsp white wine or tsp
• sunflower oil↗4 tbsp tbsp

  plus extra for drizzling

• cornflour↗1 tbsp tbsp

Step-by-step instructions

1. 1

   Heat the oven to 220C/200C fan/gas 7. Peel the potatoes and chop into medium‑sized chips. Rinse under cold running water, then tip into a large pan, cover with cold salted water, add the vinegar and bring to a simmer over a medium heat. Stir once, then continue to simmer for about 6‑8 mins until the chips are just cooked through but not breaking apart. Drain well.

2. 2

   Add the oil to a shallow roasting tin and put in the oven to heat for 5 mins. Toss the chips in the cornflour, then carefully tip into the hot oil and arrange in a single layer using tongs. Drizzle with a little more oil to coat, then roast for 20 mins.

3. 3

   Carefully turn the chips over in the oil using a spatula, then return to the oven for another 20 mins until golden brown.