01 - Set the oven to 425°F and line a large baking sheet with parchment paper.
02 - Toss the sweet potato cubes with olive oil in a large bowl until evenly coated.
03 - Combine granulated sugar, cinnamon, and sea salt in a small bowl.
04 - Sprinkle the cinnamon sugar blend over the sweet potatoes and toss to cover all pieces evenly.
05 - Spread the coated sweet potatoes in a single layer on the prepared baking sheet.
06 - Bake for 25 to 30 minutes, turning once halfway, until tender and golden brown.
07 - Serve hot, optionally garnished with extra cinnamon or chopped fresh herbs.