01 - Preheat oven to 425°F. Line a large baking sheet with parchment paper.
02 - Toss sweet potato cubes with olive oil in a large bowl until evenly coated.
03 - Combine sugar, cinnamon, and salt in a small bowl and mix well.
04 - Sprinkle cinnamon sugar mixture over sweet potatoes and toss to coat thoroughly.
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 and tender.
07 - Serve warm, optionally garnished with extra cinnamon or fresh herbs.