If you like spice but don’t have a terribly high tolerance for it, you might want to cut the chili, cumin, and cayenne in half.
2 large sweet potatoes
2 teaspoons chili powder
1 teaspoon garlic powder
1/4 teaspoon cayenne powder
1/2 teaspoon ground cumin
1 teaspoon kosher salt
1/2 teaspoon ground black pepper
3-4 tablespoons olive oil
Preheat oven to 450 degrees. Coat 2-3 sheet trays with cooking spray.
Cut sweet potatoes into 1/4 inch strips. Toss with olive oil, adding enough to evenly coat all the fries. Combine the spices and toss them into the bowl and mix to coat.
Spread the sweet potatoes in a single layer on the prepared baking sheets, being sure not to overcrowd. Bake until the sweet potatoes are tender and golden brown, turning occasionally, about 20 minutes.