Preheat the oven to 400 F (or 204 C).
Toss the sliced sweet potato strips in a large container (with a lid) with the corn starch. Once all coated, add in the oil, close the container and shake again to coat the strips well.
Sprinkle on the salt and ground black pepper onto the sweet potato strips in the container and then close the container and shake again to coat the strips. Alternatively, use your hand to rub or massage in these seasonings to make sure all are evenly coated.
These sweet potato fries get crispy much faster if the fries are placed in a single layer on the baking tray or in the glass bake ware. Keep watch towards the end (after you have flipped the fries once) when baking to make sure the fries don’t get burnt.
If you prefer, you can arrange the sweet potato strips on the baking tray or glass casserole bake ware first, before sprinkling on the paprika and garlic powder evenly over the potato strips prior to baking.