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Balsamic Roasted Onions Recipe

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★★★★★

4.6 from 100 reviews

Balsamic Roasted Onions are a delicious side dish where sweet onions are caramelized in a savory blend of butter, olive oil, balsamic vinegar, and white wine. Roasting at a high temperature creates tender, flavorful onions with a perfect balance of sweetness and tang, enhanced by fresh herbs for a delightful finish.

Ingredients

Scale

Vegetables

  • 6 small or 4 medium sweet onions

Fats and Oils

  • 2 tablespoons butter
  • 1 tablespoon olive oil

Liquids

  • ⅓ cup balsamic vinegar
  • 2 tablespoons dry white wine

Seasonings and Others

  • 1 tablespoon sugar
  • Salt and pepper, to taste
  • 2 tablespoons chopped fresh green herbs (parsley, thyme, or oregano)

Instructions

  1. Prepare the Onions: Preheat your oven to 425°F (220°C). Peel the onions carefully and slice each one in half vertically to expose their layers.
  2. Make the Roasting Mixture: In an ovenproof casserole dish, combine the butter and olive oil. Whisk in the balsamic vinegar, dry white wine, sugar, salt, and pepper until well blended to create the flavorful roasting liquid.
  3. Arrange and Roast the Onions: Place the onion halves cut side down in a single layer in the casserole dish. Cover the dish with aluminum foil and roast in the preheated oven for 20 minutes to start softening and caramelizing the onions.
  4. Flip and Baste: After 20 minutes, carefully flip each onion half over and baste them with the pan juices to help them brown evenly and remain moist.
  5. Finish Roasting: Return the casserole dish to the oven uncovered. Continue roasting for another 20-25 minutes until the onions are tender, deeply browned, and caramelized to perfection.
  6. Serve: Remove the roasted onions from the oven and serve warm or at room temperature. Garnish with freshly chopped parsley, thyme, or oregano to add a vibrant herbal note.

Notes

  • Use sweet onions such as Vidalia or Walla Walla to achieve the best natural sweetness when roasted.
  • The sugar helps to enhance caramelization but can be omitted for a less sweet version.
  • Covering with foil initially prevents the onions from drying out while they soften.
  • Basting halfway through roasting ensures even caramelization and doughy, tender texture.
  • This dish pairs wonderfully with roasted meats, grilled vegetables, or can be added to salads or sandwiches.
  • Leftovers can be refrigerated for up to 3 days and reheated gently.

Keywords: balsamic roasted onions, caramelized onions, roasted vegetables, side dish, sweet onions, healthy sides, vegetarian recipe

Find it online: https://bakedbylisa.com/balsamic-roasted-onions-recipe/