Here is a favorite new staple for our snack and side dish menu. We simply slice up a sweet potato into 1/2" thick lengths (leave the skin on and do not wash). Then spray with olive oil and sprinkle a generous amount of salt and pepper. We back at 400F for 20 minutes. Then flip, spray, sprinkle and bake for another 20 minutes. Let cool for a few minutes and enjoy a astonishingly sweet (now that the sugars have caramelized) sweet potato fry.