01 - Preheat the air fryer to 400°F (200°C) for 3 minutes.
02 - In a large mixing bowl, toss the sweet potato fries with cornstarch until they are evenly coated.
03 - Drizzle olive oil over the fries and toss again to ensure full coverage.
04 - Add smoked paprika, garlic powder, salt, and black pepper; mix thoroughly until fries are evenly seasoned.
05 - Place fries in a single layer inside the air fryer basket; cook in batches if necessary to avoid overcrowding.
06 - Air fry the fries for 15 to 18 minutes, shaking the basket halfway through cooking, until fries are golden and crispy.
07 - Remove fries, sprinkle with additional salt if desired, and serve immediately.