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Balsamic Roasted Onions Recipe

Balsamic Roasted Onions Recipe


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4.9 from 39 reviews

  • Total Time: 1 hour
  • Yield: 4 1x

Description

Succulent balsamic roasted onions highlight Mediterranean culinary magic with caramelized elegance. Robust flavors and simple preparation invite home cooks to explore delightful side dish possibilities.


Ingredients

Scale
  • 6 small or 4 medium sweet onions
  • 1/3 cup (79 ml) balsamic vinegar
  • 2 tbsps (30 ml) butter
  • 1 tbsp (15 ml) olive oil
  • 2 tbsps dry white wine
  • 1 tbsp sugar
  • 2 tbsps chopped fresh green herbs (parsley, thyme, or oregano)
  • salt (to taste)
  • pepper (to taste)

Instructions

  1. Preheat oven to 425°F, preparing for a roasted onion transformation.
  2. Carefully remove outer skin from onions, slicing them precisely in half crosswise.
  3. Select a spacious ovenproof casserole dish and create a flavor base by mixing olive oil and butter.
  4. Craft a luxurious liquid mixture by whisking balsamic vinegar, white wine, salt, sugar, and pepper into the oil-butter blend.
  5. Position onion halves cut-side down in a single, organized layer within the seasoned dish.
  6. Shield the dish with aluminum foil and roast for 20 minutes, allowing initial softening of the onions.
  7. Carefully extract the dish from the oven, gently flipping each onion half and generously basting with the aromatic pan juices.
  8. Return uncovered dish to the oven, continuing roasting for an additional 20-25 minutes until onions develop a rich, caramelized exterior and become tender throughout.
  9. Remove roasted onions from oven, letting them rest momentarily before serving warm or at ambient temperature, elegantly garnished with fresh chopped herbs.

Notes

  • Slice onions evenly to ensure uniform cooking and consistent caramelization across all pieces.
  • Choose sweet onions like Vidalia or Walla Walla for a more mellow, rich flavor profile that complements the balsamic glaze.
  • Select high-quality balsamic vinegar with a deep, complex taste to elevate the overall dish’s richness and depth.
  • Adjust cooking time based on onion size and desired tenderness, checking periodically to prevent burning or overcooking.
  • Prep Time: 15 minutes
  • Cook Time: 45 minutes
  • Category: Appetizer, Snacks
  • Method: Roasting
  • Cuisine: Italian

Nutrition

  • Serving Size: 4
  • Calories: 123 kcal
  • Sugar: 6 g
  • Sodium: 60 mg
  • Fat: 9 g
  • Saturated Fat: 4 g
  • Unsaturated Fat: 5 g
  • Trans Fat: 0 g
  • Carbohydrates: 11 g
  • Fiber: 2 g
  • Protein: 1 g
  • Cholesterol: 20 mg