Preheat oven to 375 degrees F. Line a baking sheet with parchment paper or foil.
Thinly slice potatoes, approximately 1/4 inch thick.
In a large zipper bag, combine oil, salt, pepper, garlic powder and parmesan cheese; mix. Add potatoes and mix to combine.
Place potatoes in a single layer on pepared baking
Bake for 25-30 minutes, until golden brown. Then watch them disappear.