Roasted Broccoli with Broccoli Stem Vinaigrette


Roasting broccoli gives it a wonderful sweetness and crunch, making it a welcome side dish to any meal. Add in garlic and the spicy heat of crushed red pepper, and you’ve got a dish that will make even the biggest broccoli skeptic ask for seconds. The stems need not go to waste—they’re just as delicious as the other parts of the broccoli. “This is a stem-to-floret dish,” exclaims TV personality Alex Guarnaschelli.

Roasted Broccoli with Broccoli Stem Vinaigrette
Photo: Charissa Fay
Active Time:
15 mins
Total Time:
1 hr



  • 1 (1- to 1 1/2-pound) head broccoli, cut into 2-inch florets, stems reserved for vinaigrette

  • 2 tablespoons extra-virgin olive oil

  • 3 large garlic cloves, thinly sliced

  • 1 1/2 teaspoons kosher salt

  • 1/2 teaspoon crushed red pepper


  • 1/3 cup plus 1 tablespoon extra-virgin olive oil, divided

  • 1/2 cup chopped yellow onion (from 1 small onion)

  • 1 cup peeled and thinly sliced broccoli stems

  • 1 large garlic clove, thinly sliced

  • 1 tablespoon red wine vinegar

  • 1 tablespoon water

  • 2 teaspoons Dijon mustard

  • 1 teaspoon kosher salt


  • 1/4 teaspoon black pepper

  • Pinch of poppy seeds


Make the roasted broccoli

  1. Preheat oven to 425°F. Toss together broccoli florets, olive oil, garlic, salt, and crushed red pepper on a large rimmed baking sheet; spread in a single layer. Roast in preheated oven until broccoli is tender and edges are browned, about 20 minutes.

Make the broccoli vinaigrette

  1. While broccoli roasts, heat 1 tablespoon oil in a medium skillet over medium. Add onion, and cook, stirring often, until onion is tender and beginning to brown, about 15 minutes. Stir in sliced broccoli stems and garlic, and cook, stirring occasionally, until broccoli is tender, about 8 minutes. Transfer stem mixture to a blender, and add vinegar, 1 tablespoon water, Dijon, salt, pepper, and remaining 1/3 cup oil. Secure lid on blender, and remove center piece to allow steam to escape. Place a clean towel over opening. Process on high speed until smooth, about 1 minute.

  2. To serve, transfer vinaigrette to a serving platter, spreading around platter with a spoon. Top with roasted broccoli mixture, and sprinkle with poppy seeds.

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