01 - Set the oven to 425°F and line a baking sheet with parchment paper.
02 - In a large bowl, toss Brussels sprouts with olive oil, sea salt, black pepper, and garlic powder until evenly coated.
03 - Place the Brussels sprouts cut side down on the prepared baking sheet in a single layer.
04 - Roast for 20 to 25 minutes, stirring once halfway through, until golden brown and crisp-tender.
05 - In a small saucepan over medium heat, combine balsamic vinegar and honey or maple syrup. Bring to a simmer, reduce heat, and cook for 5 to 7 minutes, stirring occasionally, until reduced by half and thickened. Remove from heat and let cool slightly.
06 - Transfer roasted Brussels sprouts to a serving dish, drizzle with balsamic glaze, and serve immediately.