01 - Preheat the oven to 425°F. Line a large baking sheet with parchment paper.
02 - In a large bowl, toss sweet potato cubes with olive oil until evenly coated.
03 - In a small bowl, mix sugar, cinnamon, and salt thoroughly.
04 - Sprinkle the cinnamon sugar mixture over the sweet potatoes and toss to coat all pieces evenly.
05 - Spread sweet potatoes in a single layer on the prepared baking sheet.
06 - Roast for 25 to 30 minutes, turning once halfway, until golden brown and tender.
07 - Serve hot, optionally garnished with extra cinnamon or fresh herbs.