01 - Preheat the oven to 425°F. Line a rimmed baking sheet with parchment paper for easy cleanup.
02 - Arrange trimmed asparagus in a single layer on the prepared baking sheet. Drizzle with olive oil, sprinkle evenly with salt and pepper, and toss gently to coat each spear.
03 - Roast for 12 to 15 minutes until tender and lightly caramelized, shaking the pan halfway through for even cooking.
04 - While asparagus roasts, combine balsamic vinegar and maple syrup (if using) in a small saucepan over medium heat. Bring to a gentle simmer, reduce heat to low, and cook for 6 to 8 minutes until liquid reduces by half and thickens to syrup consistency. Remove from heat and cool slightly.
05 - Transfer roasted asparagus to a serving platter. Drizzle with balsamic reduction and garnish with pine nuts, shaved Parmesan (if using), and extra black pepper. Serve immediately while warm.