Name: Roasted Balsamic Brussels Sprouts
Prep time: 5 min
Cook time: 49 min
Total time: 54 min
Yield: 4 servings
Cuisine: American
Ingredients: 1 lb Brussels sprouts; 1 red onion; 2 tablespoons olive oil; 0.5 tsp kosher salt; 1 tbsp reduced balsamic vinegar

Roasted Balsamic Brussels Sprouts are roasted with crisp edges, and then tossed in syrupy sweet reduced balsamic vinegar. In addition to being absolutely delicious (seriously!), brussels sprouts have a ton of health benefits as well. While being high in nutrients such as fiber, vitamin c and vitamin k, they’re also low in calories. There’s something about the combination of slow roasted red onions and sweet balsamic glaze that make this batch of brussels sprouts something really special.

Side Dishes

54 m

American

Weelicious

March 10, 2026

Weelicious.com

From the Cook

1/4

Roasted Balsamic Brussels Sprouts

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Ingredients

Warning0 allergens identified

Instructions

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Instructions

Preheat the oven to 425F degrees. Cut the brussels sprouts in half and the red onion into chunks.

Place the brussels sprouts and onions on a baking sheet, drizzle with the oil and salt, and toss to thoroughly coat.

Roast until the Brussels sprouts are fork tender and the leaves begin to crisp, about 40 minutes.

Remove from the oven, and toss with the reduced balsamic vinegar.

Nutrition

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Tips & Tricks (5)

Dry Your Brussels Sprouts Thoroughly 💧
Pat Brussels sprouts completely dry with paper towels before roasting—any moisture prevents caramelization and creates steam instead of those coveted crispy, golden edges.
Don't Overcrowd the Pan 🍳
Arrange Brussels sprouts in a single layer with flat sides down on the baking sheet; overcrowding causes steaming rather than roasting, resulting in soft instead of crispy exteriors.
Reduce Balsamic Before Using ⏱️
Simmer balsamic vinegar in a saucepan for 8-10 minutes until it reaches a syrupy, glossy consistency that coats the sprouts—this concentrates flavor and prevents watery results.
Toss at the Right Moment 🕐
Add the balsamic glaze to Brussels sprouts in the final 2-3 minutes of roasting while they're still hot, allowing the glaze to adhere and caramelize rather than making them soggy.
Roast at High Heat Initially 🔥
Start roasting at 425°F for the first 20 minutes to develop deep browning and crispy edges, then reduce to 375°F if needed to prevent burning while the interiors finish cooking.