Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
Trim the Brussels sprouts and cut them in half.
Toss the Brussels sprouts with olive oil, salt, and black pepper, ensuring they’re well-coated.
Spread them evenly on the prepared baking sheet.
Roast in the preheated oven for about 25 minutes or until they’re golden brown and crispy on the edges.
While they roast, cook bacon in a skillet over medium heat until crisp.
In a small bowl, whisk together balsamic vinegar and honey to create a glaze.
Drizzle over the roasted sprouts, stirring to coat them evenly.
Prepare a lemon aioli by mixing the mayonnaise and lemon juice.
Serve the sprouts hot with crumbled bacon on top, accompanied by the aioli for dipping.