01 - Preheat oven to 425°F. Line a rimmed baking sheet with parchment paper for easy cleanup.
02 - Arrange asparagus spears in a single layer on the prepared baking sheet. Drizzle olive oil evenly over the spears, then sprinkle with kosher salt and black pepper. Toss gently to coat all pieces thoroughly.
03 - Roast asparagus for 12 to 15 minutes until tender-crisp with lightly caramelized edges. Shake the baking sheet halfway through cooking time to promote even browning.
04 - While asparagus roasts, combine balsamic vinegar and honey (or maple syrup) in a small saucepan. Bring to a gentle simmer over medium heat. Cook for 5 to 7 minutes, stirring occasionally, until reduced by half and thickened to a syrup consistency.
05 - Transfer roasted asparagus to a serving platter. Drizzle the warm balsamic glaze generously over the spears. Serve immediately while hot.