01 - Preheat your oven to 425°F. Line two large baking sheets with parchment paper.
02 - Cut the sweet potatoes into thin, even matchsticks, about 1/4 inch thick.
03 - In a large bowl, toss the fries with cornstarch until evenly coated. Shake off any excess.
04 - Add olive oil, smoked paprika, garlic powder, salt, and black pepper. Toss well to coat.
05 - Spread the fries in a single layer on the prepared baking sheets, making sure they do not touch or overlap (use two sheets if needed for space).
06 - Bake for 12 minutes, then flip each fry with a spatula.
07 - Rotate the trays and bake for another 10–13 minutes, or until crisp and golden brown at the edges.
08 - Remove from oven and sprinkle with extra salt if desired. Serve immediately, garnished with chopped parsley.