Note: You can also use sweet potatoes and parsnips.
Preheat the oven to 170c/150c fan
Peel and slice thinly the potatoes using a mandoline. Lay out the potato pieces on a sheet of kitchen towel and cover with another piece of kitchen towel. Press and squeeze out as much liquid from the potatoes. Now drizzle with olive oil and season with salt and pepper. Put in the oven and leave for about 18-22 minutes.
