Sweet and Tangy Balsamic Roasted Onions Recipe

If you’re looking for a side dish that’s bursting with flavor and pairs perfectly with just about anything, these Sweet and Tangy Balsamic Roasted Onions are a must-try! I first made these for a family gathering, and they were an instant hit. The caramelization of the onions, combined with the tangy balsamic glaze, creates a beautiful balance that elevates any meal. They’re not only simple to prepare but also bring a delightful sweetness to the table. Let’s dive into this delicious recipe!

Ingredients

  • 4 large onions (red or yellow)
  • 1/4 cup balsamic vinegar
  • 2 tablespoons olive oil
  • 2 tablespoons brown sugar (or honey for a lighter option)
  • Salt and pepper, to taste
  • Fresh thyme or rosemary (optional, for garnish)

Instructions

  1. Prepare the Onions: Preheat your oven to 400°F (200°C). Peel the onions and cut them into thick slices or wedges, about 1/2 inch thick.
  2. Mix the Marinade: In a large bowl, whisk together the balsamic vinegar, olive oil, brown sugar, salt, and pepper until well combined.
  3. Toss the Onions: Add the sliced onions to the bowl and toss them in the balsamic mixture until they are well coated.
  4. Arrange on Baking Sheet: Spread the onions out in a single layer on a baking sheet lined with parchment paper.
  5. Roast: Bake in the preheated oven for 25-30 minutes, or until the onions are tender and caramelized, flipping them halfway through to ensure even cooking.
  6. Garnish and Serve: Once done, remove from the oven and let them cool slightly. Garnish with fresh thyme or rosemary if desired, and serve warm.

Nutrition Facts

  • Servings: 4
  • Calories per serving: 120
  • Total fat: 5g
  • Saturated fat: 0.5g
  • Carbohydrates: 18g
  • Protein: 1g

Preparation Time

  • Prep time: 10 minutes
  • Cook time: 30 minutes
  • Total time: 40 minutes

How to Serve

  • As a side dish: Perfect alongside roasted meats, grilled fish, or vegetable dishes.
  • On a salad: Toss them into a mixed green salad for a burst of flavor.
  • With cheese: Serve over creamy goat cheese or burrata for an elegant appetizer.
  • In sandwiches: Use them to elevate your favorite sandwiches or burgers.
  • On a charcuterie board: Add to a cheese board for a sweet and tangy contrast.

Additional Tips

  1. Choose the right onions: Red onions add a sweeter flavor, while yellow onions are more savory.
  2. Experiment with spices: Feel free to add spices like smoked paprika or crushed red pepper for extra flavor.
  3. Watch for caramelization: Keep an eye on the onions towards the end of baking; they can burn quickly.
  4. Use different vinegars: Try apple cider vinegar for a different flavor profile.
  5. Make it ahead: These can be made ahead of time and reheated just before serving.

Recipe Variations

  • Herb-Infused Onions: Add fresh herbs like rosemary or thyme directly to the baking sheet for infused flavor.
  • Balsamic Glazed Brussels Sprouts: Toss Brussels sprouts in the same balsamic mixture for a twist.
  • Sweet and Spicy Onions: Add a pinch of cayenne pepper or chili flakes for a kick.
  • Maple Roasted Onions: Substitute brown sugar with maple syrup for a different sweet note.
  • Vegan Version: This recipe is already vegan, but ensure your sugar is vegan if using honey substitute.

Serving Suggestions

  • Serve alongside roasted chicken or pork tenderloin for a hearty meal.
  • Pair with a simple green salad for a light lunch.
  • Enjoy on top of quinoa or grain bowls for added flavor.
  • Include in tacos for a sweet and tangy twist.
  • Use as a topping for pizza or flatbreads for a gourmet touch.

Freezing and Storage

  • Freezing: These onions freeze well! Let them cool completely, then store in an airtight container for up to 3 months.
  • Refrigeration: Store leftovers in the fridge for up to 5 days.
  • Reheating: Reheat in the oven or microwave until warmed through.

Special Equipment

  • Baking sheet: For roasting the onions.
  • Parchment paper: Helps prevent sticking and makes cleanup easy.
  • Mixing bowl: For mixing the balsamic marinade.
  • Whisk: To combine the marinade ingredients.
  • Sharp knife: For slicing the onions.

FAQ

1. Can I use different types of onions?
Yes! Red, yellow, or even sweet onions will work, though each will give a slightly different flavor.

2. How can I store leftovers?
Store in an airtight container in the fridge for up to 5 days or freeze for longer storage.

3. Can I make these on the stovetop instead?
You can sauté the onions in a pan, but roasting brings out a deeper flavor.

4. What can I substitute for balsamic vinegar?
Apple cider vinegar or red wine vinegar can be used, but the flavor will change slightly.

5. How do I know when the onions are done?
They should be soft and caramelized, with a rich brown color.

Print

Sweet and Tangy Balsamic Roasted Onions Recipe

  • Author: Emily
  • Prep Time: 10 minutes
  • Cook Time: 30 minutes
  • Total Time: 40 minutes

Ingredients

Scale
  • 4 large onions (red or yellow)
  • 1/4 cup balsamic vinegar
  • 2 tablespoons olive oil
  • 2 tablespoons brown sugar (or honey for a lighter option)
  • Salt and pepper, to taste
  • Fresh thyme or rosemary (optional, for garnish)

Instructions

  • Prepare the Onions: Preheat your oven to 400°F (200°C). Peel the onions and cut them into thick slices or wedges, about 1/2 inch thick.
  • Mix the Marinade: In a large bowl, whisk together the balsamic vinegar, olive oil, brown sugar, salt, and pepper until well combined.
  • Toss the Onions: Add the sliced onions to the bowl and toss them in the balsamic mixture until they are well coated.
  • Arrange on Baking Sheet: Spread the onions out in a single layer on a baking sheet lined with parchment paper.
  • Roast: Bake in the preheated oven for 25-30 minutes, or until the onions are tender and caramelized, flipping them halfway through to ensure even cooking.
  • Garnish and Serve: Once done, remove from the oven and let them cool slightly. Garnish with fresh thyme or rosemary if desired, and serve warm.

Nutrition

  • Serving Size: 4 servings
  • Calories: 120 kcal
  • Fat: 5g
  • Saturated Fat: 0.5g
  • Carbohydrates: 18g
  • Protein: 1g

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Closing Note

These Sweet and Tangy Balsamic Roasted Onions are a delightful addition to any meal. Their sweet, caramelized flavor combined with the tanginess of balsamic vinegar will have everyone coming back for seconds. I hope you enjoy making and sharing this recipe as much as I do. Happy cooking!