Roasting Brussels sprouts in the oven turns their cut sides deeply golden while the centers become tender, with a pleasantly nutty flavor. A hot oven, dry sprouts, and enough space on the pan are the keys to an easy side dish that works with weeknight dinners and holiday meals alike.
Ingredients
- 1½ lb Brussels sprouts (680 g), trimmed and halved lengthwise; quarter any especially large sprouts
- 2 tbsp olive oil (30 ml)
- ½ tsp fine salt (3 g)
- ¼ tsp freshly ground black pepper (about 0.5 g)
- 1 tsp balsamic vinegar (5 ml), optional, for finishing
- 1 tbsp finely grated Parmesan (5 g), optional, for serving
Instructions
- Heat the oven and prepare a pan. Set a rack in the upper-middle position and heat the oven to 425°F (220°C). Use a large, rimmed baking sheet. For the best browning, leave it unlined; parchment is convenient but can make the sprouts a little less crisp. Avoid crowding: if your pan is small, use two sheets.
- Trim and dry the sprouts. Rinse the Brussels sprouts under cool running water. Trim off the dry stem ends and remove any loose or damaged outer leaves. Slice each sprout in half lengthwise, cutting through the stem so the leaves stay together; quarter the largest ones so the pieces cook at a similar rate. Dry thoroughly with a clean towel. Wet sprouts tend to steam rather than brown.
- Season evenly. Put the sprouts in a large bowl and add the olive oil, salt, and pepper. Toss until each piece has a light coating, paying special attention to the flat cut surfaces. If oil pools in the bowl, add the sprouts to the pan with tongs or a slotted spoon rather than pouring all the excess over them.
- Arrange cut-side down. Spread the sprouts across the baking sheet in one layer, with the flat sides against the pan wherever practical. Leave a little space between pieces. Crowded sprouts release moisture into one another and are less likely to develop crisp edges.
- Roast until browned and tender. Roast for 18 minutes, then check the color and tenderness. Turn the sprouts or shake the pan, and roast for another 3–6 minutes as needed. They are ready when the cut sides are dark golden brown, the leaves at the edges are crisp, and a fork slides into the centers without resistance. Smaller pieces may finish early, so remove them if necessary. Oven performance and sprout size affect the timing.
- Finish and serve. Transfer to a serving dish while hot. If using, toss with the balsamic vinegar and sprinkle with Parmesan. Taste and add a pinch more salt or pepper if needed; serve promptly for the crispest texture.
Tips
- Dry them well. Water left after rinsing makes the sprouts steam on the pan. If you wash them in advance, dry them and refrigerate uncovered or loosely covered until ready to cook.
- Match the size. Halve small and medium sprouts, and quarter very large ones. Pieces of similar size cook more evenly; pull out any noticeably smaller pieces before the rest if they brown quickly.
- Use a hot, uncrowded pan. A 425°F (220°C) oven and a single layer encourage browning. If the sprouts are piled together, divide them between two sheets rather than extending the cooking time in a crowded pan.
- Adjust the finish, not the basic method. For a dairy-free version, omit Parmesan. A squeeze of lemon can replace the balsamic for a brighter finish. Add delicate toppings after roasting so they do not scorch.
Serving Suggestions
Serve the sprouts hot as a side with roast chicken, pork, fish, or a hearty lentil or bean dish. They also pair well with mashed potatoes, grain bowls, and a simple green salad. For a fuller side, add toasted chopped walnuts or hazelnuts just before serving; their crunch complements the browned leaves.
If serving a crowd, roast in batches or use two oven racks with one sheet on each, then switch the sheets’ positions halfway through cooking. A single sheet usually browns more evenly, so allow a few extra minutes if baking two at once and check both pans for doneness.
Variations
- Garlic and lemon: Roast as directed, then toss with 1 small grated garlic clove (about 3 g) and 1 tsp lemon juice (5 ml). Adding garlic at the end keeps it from burning.
- Maple and mustard: Stir together 1 tsp maple syrup (5 ml) and 1 tsp Dijon mustard (5 g), then toss with the hot sprouts after roasting. The result is sweet-tangy, so taste before adding extra salt.
- Spicy: Add ¼ tsp red pepper flakes (about 0.5 g) to the oil and seasoning before roasting, or finish with a few drops of hot sauce.
- With bacon: Roast the sprouts on their own for 10 minutes, then add 2 oz diced bacon (57 g) and continue roasting until the sprouts are tender and the bacon is fully cooked and crisp. If using meat, cook it safely and avoid cross-contamination; bacon pieces should be thoroughly cooked rather than left soft or underdone.
Storage and Reheating
Let leftovers cool briefly, then refrigerate them in a covered container within 2 hours of cooking. They keep for 3–4 days in the refrigerator. For the best texture, reheat in a single layer on a baking sheet at 400°F (205°C) for about 7–10 minutes, until hot throughout. An air fryer also works well; check after 3–5 minutes because models vary. A microwave reheats them quickly but softens the crisp edges. Reheat leftovers to 165°F (74°C), measured with a food thermometer, for food safety.
Frequently Asked Questions
Should Brussels sprouts be washed before roasting?
Yes. Rinse them under cool running water, remove damaged outer leaves, and dry them thoroughly before trimming and seasoning. Washing in advance is fine as long as the sprouts are fully dry before they go into the oven.
Do I need to boil or blanch them first?
No. Halved Brussels sprouts roast directly from raw and become tender inside as their cut sides brown. Boiling first adds a step and can leave them softer; it is not needed for this method.
Why are my roasted sprouts not crispy?
The most common causes are excess moisture, a pan that is too crowded, or an oven that is not fully heated. Dry the sprouts well, spread them out, and place their cut sides against the pan. A dark, seasoned baking sheet can brown them more quickly, so check early.
Can I roast frozen Brussels sprouts?
Yes, but they will generally be softer because freezing releases moisture. Roast them from frozen rather than thawing, spread them in a single layer, and expect a longer cooking time. They may not brown as evenly as fresh sprouts; check that the centers are hot and tender before serving.
Can I prepare them ahead?
You can trim and halve the sprouts up to a day ahead, then store them covered in the refrigerator and dry them again if needed. For the best browning, toss them with oil and seasonings just before roasting. Fully roasted sprouts can also be made ahead, but reheating will not restore all of their original crispness.
Can I use a lower oven temperature?
You can, but the sprouts will take longer and may brown less. For this recipe, 425°F (220°C) balances a tender center with browned edges. If you need to share the oven with another dish, adjust the time to suit the other temperature and judge doneness by color and tenderness rather than the clock alone.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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