Crispy Smashed Brussels Sprouts with Prosciutto are made by briefly boiling Brussels sprouts, pressing them flat, and roasting them at 425°F until their edges become deeply browned and crunchy. The sprouts are finished with crisp prosciutto, Parmesan, fresh lemon juice, and optional balsamic glaze for a savory side dish that takes approximately 45–50 minutes from start to finish.
This recipe turns ordinary Brussels sprouts into a mouth-watering combination of tender centers and shatteringly crisp edges. Salty prosciutto adds delicate crunch, Parmesan brings a nutty finish, and lemon cuts through the richness so every bite tastes bright, savory, and balanced.
Jump to RecipeWhy You’ll Love This Recipe
These crispy smashed Brussels sprouts bring together the textures that make a vegetable side dish memorable. The brief boil softens the centers, while smashing increases the surface area that touches the hot pan, creating browned edges and crisp ridges throughout.
Prosciutto adds a naturally salty, delicate crunch without requiring a separate skillet. Because it is added after the sprouts have already started roasting, it has enough time to crisp without scorching before the vegetables are ready.
The final touches are simple but important. Parmesan melts into the warm sprouts, lemon juice keeps the dish fresh, and balsamic glaze contributes a sweet-tart accent when you want a slightly richer finish.
This side dish is especially good with roasted chicken, pork, steak, or a holiday dinner. If you are planning a complete comfort-food menu, our Tuscan tortellini dinner makes another hearty option for the table.
Ingredients You’ll Need
The ingredient list is short, so each component has a clear job. Choose firm Brussels sprouts with tightly packed leaves, and trim away the dry stem ends before cooking.
- Brussels sprouts: Use 1 1/2 pounds, trimming them and halving any especially large sprouts so they cook at a similar rate.
- Olive oil: Three tablespoons provide enough fat for browning and help the seasonings cling to the flattened surfaces.
- Salt and pepper: Salt the boiling water generously, then use 1 teaspoon kosher salt and 1/2 teaspoon freshly ground black pepper for the sprouts.
- Prosciutto: Four ounces of thinly sliced prosciutto, torn into pieces, becomes crisp and savory in the final roasting stage.
- Parmesan: One-third cup of finely grated cheese melts quickly and adds a nutty, salty finish.
- Lemon and balsamic glaze: Lemon wedges are essential for brightness, while 2 tablespoons of balsamic glaze are optional for a sweet-tart drizzle.
For a different meal category, you may also enjoy this cozy roasted eggplant soup. It has the same appealing roasted flavor profile, but in a smooth and warming bowl.
How to Make It Step-by-Step
Step 1: Heat the oven to 425°F and prepare a large rimmed baking sheet. Line it with parchment or lightly oil it, using a metal pan when possible because metal encourages stronger browning.
Step 2: Bring a large pot of well-salted water to a full boil. Add the trimmed Brussels sprouts and cook for 7–9 minutes, checking them near the end so they are just tender but still sturdy enough to press flat.
Step 3: Drain the sprouts very thoroughly. Let them sit for several minutes so steam can escape, then pat away excess water; wet sprouts will steam on the pan instead of developing crisp, caramelized edges.
Step 4: Arrange the sprouts on the baking sheet with plenty of space around each piece. Press each one firmly with the bottom of a glass, measuring cup, or small pan until it is about 1/2 inch thick.
Step 5: Drizzle the smashed sprouts with about 2 tablespoons of the olive oil. Sprinkle them with the kosher salt and black pepper, making sure the oil reaches the exposed cut sides and leafy edges.
Step 6: Roast the sprouts for 15–18 minutes. Whenever possible, position the cut sides against the baking sheet so they make direct contact with the hot surface and begin to brown underneath.
Step 7: Remove the pan and scatter the torn prosciutto over and around the sprouts. Return it to the oven for 5–8 minutes, watching closely as the prosciutto changes from soft and glossy to crisp and curled.
Step 8: Sprinkle the finely grated Parmesan over the roasted vegetables and prosciutto. Roast for another 1–2 minutes, just until the cheese softens or picks up a little color without becoming overly dark.
Step 9: Squeeze fresh lemon juice over the hot Brussels sprouts. Add a small drizzle of the optional balsamic glaze, arrange lemon wedges on the platter, and serve immediately while the edges are at their crunchiest.
Chef’s Best Crisping Tips
The most important step happens before roasting: remove as much water as possible. After boiling, allow the sprouts to steam-dry instead of transferring them directly from the colander to the baking sheet.
Do not crowd the pan. Each smashed sprout needs room around it, because too many vegetables packed together trap steam and prevent the exposed leaves from browning.
A metal rimmed baking sheet is a strong choice for this recipe. Place the cut sides down whenever practical, and resist moving the sprouts during the first roasting stage so the bottoms have time to form a dark, crisp crust.
Prosciutto is thin and can burn quickly. Adding it during the last 5–8 minutes gives the Brussels sprouts a head start and produces crisp cured ham with fewer bitter, over-dark edges.
If you enjoy a little heat, garlic powder, minced garlic, or red-pepper flakes can be added with the oil. These are optional variations and are not necessary for the classic lemon-Parmesan flavor.
For a cheese variation, Pecorino Romano can replace Parmesan. It has a sharper, saltier character, so taste before adding extra finishing salt.
Serving Ideas and Pairings
Serve these sprouts straight from the baking sheet or transfer them to a wide platter so the crisp pieces remain spread out. Finish with lemon wedges at the table, allowing everyone to add as much juice as they like.
They make an excellent side for a holiday roast, but they are also substantial enough for a simple weeknight meal with crusty bread and a green salad. The salty prosciutto and Parmesan provide enough savory flavor to make the dish feel special without a complicated sauce.
For dessert after a dinner featuring these vegetables, try our Snickers apple salad for a creamy, crunchy contrast. For a chocolate-focused finish, these chocolate bark cupcakes are another tempting choice.
Storage and Reheating
These Brussels sprouts are best immediately after roasting, when the prosciutto is crisp and the leafy edges are crunchy. If you have leftovers, cool them promptly and place them in an airtight container in the refrigerator.
Reheat leftovers on a metal baking sheet in a 425°F oven until hot and crisp again. An air fryer can also restore some crunch, but avoid the microwave if possible because it softens the roasted edges and prosciutto.
Keep the lemon juice and balsamic glaze separate until serving when preparing the recipe ahead. Acid and glaze can make the crisp coating soften during storage.
For another sweet bite to serve after dinner, these homemade peanut butter cups are easy to portion and prepare in advance.
Crispy Smashed Brussels Sprouts with Prosciutto
Ingredients
Method
- Heat the oven to 425°F. Line a large rimmed metal baking sheet with parchment, or lightly oil it with some of the divided olive oil.
- Bring a large pot of well-salted water to a boil. Add the Brussels sprouts and cook for 7–9 minutes, until just tender but not falling apart.
- Drain the Brussels sprouts thoroughly and let them steam-dry for several minutes. Pat away any visible moisture before arranging them on the baking sheet.
- Use the bottom of a glass, measuring cup, or small pan to press each sprout flat to about 1/2 inch thick. Leave space between the pieces so hot air can circulate.
- Drizzle the smashed sprouts with about 2 tablespoons of olive oil and season with 1 teaspoon kosher salt and 1/2 teaspoon black pepper. Turn or nudge the sprouts as needed so the oil reaches the exposed cut surfaces.
- Roast for 15–18 minutes, preferably with the cut sides against the pan, until the bottoms are browned and the edges begin to crisp.
- Scatter the torn prosciutto over and around the Brussels sprouts. Return the baking sheet to the oven for 5–8 minutes, until the prosciutto is crisp and the sprouts are deeply browned.
- Sprinkle the Parmesan over the roasted sprouts and prosciutto. Roast for 1–2 minutes more, just until the cheese softens or lightly browns.
- Finish with fresh lemon juice and serve immediately. Add a small drizzle of balsamic glaze if desired.
Notes
Final Thoughts
Crispy Smashed Brussels Sprouts with Prosciutto are proof that a few straightforward techniques can make vegetables the most requested part of the meal. Boiling first creates tender centers, smashing creates plenty of browning surface, and late-added prosciutto brings the salty crunch that ties everything together.
Remember the three keys: dry the sprouts well, leave generous space on the baking sheet, and add the prosciutto partway through cooking. Finish with Parmesan, lemon, and optional balsamic glaze, then serve while the edges are hot and crisp.
With a preparation time of about 15 minutes and approximately 20–25 minutes of roasting, this 4–6 serving recipe fits both a weeknight dinner and a festive menu. Put the platter in the center of the table and expect it to disappear quickly.
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