Prepare the Sweet Potatoes: Preheat the oven to 425°F (220°C). Line a baking sheet with parchment paper. Cut the sweet potatoes into evenly sized fries to ensure even cooking.
Coat with Seasoning: In a large bowl, toss the sweet potato fries with olive oil, garlic powder, paprika, salt, and black pepper. If using cornstarch, sprinkle it over the fries and toss again to coat evenly.
Arrange on Baking Sheet: Spread the fries in a single layer on the prepared baking sheet, making sure they don’t overlap to allow for maximum crispiness.
Bake to Perfection: Bake for 20 minutes, then flip the fries and bake for another 10-15 minutes, or until golden brown and crispy.
Serve and Enjoy: Remove from the oven and let cool slightly. Serve immediately with your favorite dipping sauce.