Place a rimmed baking sheet in the center rack of the oven and preheat the oven to 200°C.
Thinly slice the potatoes about 1/8-inch thick and toss with the oil, salt and pepper. Carefully spread the slices on the hot baking sheet in a single layer and roast until golden and crispy, turning with a metal spatula occasionally and spreading them out to cook evenly, 30 to 35 minutes.
Recipe courtesy of foodnetwork.co.uk
Serving size 4