01 -
Peel and cut sweet potatoes into matchsticks about ¼ inch thick, making them as uniform in size as possible.
02 -
Add sweet potato matchsticks to a bowl and cover with cold water. Refrigerate for 30 minutes, or up to overnight. Drain and pat very dry.
03 -
Preheat oven to 425°F (220°C). Line two baking sheets with parchment paper or silicone baking mats.
04 -
Mix cornstarch, garlic powder, chili powder and pepper together in a bowl. Add the sweet potatoes to a large resealable bag. Toss evenly with oil, then add spice mixture and toss to coat evenly.
05 -
Divide sweet potatoes onto the baking sheets, ensuring they are not crowded or touching to prevent steaming. Bake in two batches if using only one sheet pan.
06 -
Bake for 15 minutes, then remove from the oven and flip fries to the other side.
07 -
Return to the oven for 12-15 more minutes until crisp.
08 -
While the fries bake, make the dipping sauce by combining mayonnaise, ketchup, Worcestershire sauce, and paprika in a bowl.
09 -
Remove sweet potato fries from oven and season to taste with salt and fresh parsley if desired. Serve with dipping sauce.