What you need:
2 lbs sweet potatoes peeled and sliced into 1/2-inch thick sticks
1 Tbsp cornstarch
1 tsp salts
1/2 tsp freshly ground black pepper
1 tsp paprikas
1/2 tsp garlic powder
2 1/2 Tbsp olive oil
How you make it:
Preheat oven to 425 degrees, and place a rimmed 18 by 13-inch baking sheet in oven to preheat as well.
In a small mixing bowl whisk together cornstarch, salt, pepper, paprika, and garlic powder. Place sliced sweet potatoes in a large mixing bowl. Toss sweet potatoes with olive oil then pour cornstarch mixture over sweet potatoes and toss to evenly coat. Remove baking sheet from oven then pour sweet potatoes onto a baking sheet and spread into an even layer working to keep a little space between them (careful pan will be hot!). Bake in preheated oven 15 minutes then remove from oven and toss and spread into an even layer again. Return to oven and bake until fries are golden brown in spots, about 10 minutes longer. Serve warm with fry sauce (see notes in post for fry sauce recipe) or ketchup if desired.