To put the potatoes in a bowl, drizzle with sunflower oil, add salt, spices to Your taste (e.g. coriander, Basil, pepper), mix well and spread in a single layer on the laid parchment baking sheet. Dry in the oven at 180 degrees for about 20 minutes. To check periodically on your oven, so the chips don't burn. The same thing to do with slices of carrots.