01 - Preheat the oven to 425°F. Line two large baking sheets with parchment paper.
02 - Slice sweet potatoes into 3/8-inch thick sticks, ensuring uniform thickness for even cooking.
03 - Place cut fries into a large bowl of cold water and soak for 30 minutes, then drain and dry thoroughly with a clean towel. This step is optional.
04 - Toss the dried fries with cornstarch until evenly coated. Drizzle with olive oil and sprinkle smoked paprika, garlic powder, sea salt, and black pepper. Toss to combine evenly.
05 - Spread fries in a single layer on prepared baking sheets, making sure they do not touch.
06 - Bake for 15 minutes, then flip fries and rotate trays. Continue baking for another 15 minutes until golden and crispy.
07 - Remove fries from oven, let cool for 5 minutes, sprinkle with additional salt if desired, and serve immediately.