Preheat the oven to 400 degrees F. Place a heavy duty sheet tray into the oven to heat.
Add the sweet potatoes to a large bowl and drizzle with the olive oil. Season with the cinnamon, cumin, salt and pepper.
Spread out on the hot sheet tray and bake until crisp, 25 to 30 minutes. Flip the fries halfway through roasting.
Recipe courtesy of Jamie Deen