01 - Preheat the oven to 425°F. Line a large baking sheet with parchment paper.
02 - In a large bowl, toss the sweet potato cubes with olive oil, salt, pepper, and cinnamon until evenly coated.
03 - Spread the sweet potatoes in a single layer on the prepared baking sheet. Roast for 25–30 minutes, flipping once halfway, until golden and tender.
04 - Meanwhile, in a small saucepan over medium-low heat, combine maple syrup, melted butter, and vanilla extract. Stir in the chopped pecans and cook for 2–3 minutes, just until fragrant and slightly thickened. Remove from heat.
05 - When the sweet potatoes are done, transfer them to a serving dish. Drizzle the warm maple pecan glaze over the top and gently toss to coat. Serve immediately, garnished with extra pecans if desired.