Preheat your oven to 425°F and line a baking sheet with parchment paper.
In a large bowl, toss the halved Brussels sprouts with olive oil, salt, and pepper until evenly coated.
Arrange the sprouts cut side down on the baking sheet in a single layer, making sure they aren’t overcrowded.
Roast for 20–25 minutes, flipping halfway through, until browned and crispy on the edges.
While the sprouts roast, heat a nonstick skillet over medium heat. Add the torn prosciutto pieces and cook for 3–5 minutes, stirring occasionally, until crisp. Transfer to a paper towel–lined plate to cool.
Once the Brussels sprouts are done, immediately drizzle with balsamic glaze, sprinkle with Parmesan, and top with the crispy prosciutto. Serve right away.
Video
Notes
Storage and Reheating
Refrigerate in an airtight container for up to 3 days.
Microwave: Heat in 30-second intervals until warmed through
Air Fryer: Reheat at 350°F for 3–5 minutes until crisp.
Oven: Reheat at 375°F for 8–10 minutes, uncovered.
Cooking Tips
Roast cut-side down
Use a dry skillet for the prosciutto or roast at 375 for 7-10 minutes.
Watch closely to be sure you don't overcook the prosciutto
Don't throw away the loose leaves from the Brussels sprouts. These crisp up really nicely in the oven.