01 - Preheat the air fryer to 400°F for 3 minutes.
02 - Place the sweet potato fries in a large bowl and toss with cornstarch until evenly coated.
03 - Drizzle olive oil over the fries and toss to coat evenly. Add smoked paprika, garlic powder, salt, and black pepper, mixing until well seasoned.
04 - Place the fries in a single layer in the air fryer basket; cook in batches if necessary to avoid overcrowding.
05 - Air fry for 15 to 18 minutes, shaking the basket halfway through cooking, until fries are golden and crispy.
06 - Remove fries from the basket, sprinkle with additional salt if desired, and serve immediately.