sweet potato fries

1 large sweet potato (or maybe it's a yam, I dunno)
1-2 tbsp olive oil
1 tsp koser salt (it has bigger salt crystals)
few shakes of freshly crushed pepper

Rinse the sweet potato and scrub lightly (I like it w/skin on), slice into 1/4 inch thick medallions. Toss with the olive oil, salt and pepper and bake at 400 until crisp (turn them once) ~30 mins