Preheat oven to 450°.

Scrub both potatoes and then, one by one, run them through your mandoline on the ⅛" setting.

Place potato slices in a bowl and drizzle with olive oil, salt and pepper.

Spread slices out on two baking sheets and then place them in the oven. You may need to switch the baking sheets out half way through (top sheet move to the bottom and bottom move to the top).

Bake for 20-30 minutes, removing chips as they start to turn crispy.

Sprinkle with extra salt and pepper and enjoy!