Preheat oven to 450 degrees. Line a baking sheet with parchment paper or spray with cooking spray and set aside.
Scrub the potatoes, cut in half lengthwise, then cut into wedges. Be sure to cut the wedges the same size so they cook evenly.
In a large bowl, toss the potato wedges with the cornstarch.
Add in the olive oil and spices, making sure to coat the potatoes evenly.
Line the potato wedges on the prepared baking sheet, making sure not to overcrowd them.
Bake for 35-40 minutes, flipping about halfway through.
Remove from oven. Sprinkle with additional salt, if desired, and serve.