Side Dishes > Roasted Vegetables > Other Vegetables (Roasted) > Roasted Onions Recipe (Caramelized)

Caramelized Balsamic Onions

Slow-roasted onions with a balsamic glaze create a sweet, tangy, and deeply flavorful side dish, perfect for adding richness to any meal.

Prep Time
10 minutes
Cook Time
45 minutes
Servings
6
Ingredients
  • 3 Yellow onions
  • 3 tablespoons Olive oil
  • 2 tablespoons Balsamic vinegar
  • 1 tablespoon Brown sugar
  • 1/2 teaspoon Dried thyme
  • 1/2 teaspoon Salt
  • 1/4 teaspoon Black pepper

Preparation

Preheat your oven to 375°F (190°C).

Slicing the Onions

Slice the onions thinly. Uniform slices will ensure even cooking.

Combine Ingredients

In a large bowl, combine the sliced onions, olive oil, balsamic vinegar, brown sugar, thyme, salt, and pepper. Toss well to coat the onions evenly.

Roasting

Spread the onions in a single layer in a baking dish. Cover the dish with aluminum foil.

Roast for 30 minutes covered. Remove the foil and roast for another 15-20 minutes, or until the onions are soft, caramelized, and a deep golden-brown color, stirring occasionally to prevent burning.

Serving

Remove from the oven and let cool slightly before serving. The onions are best served warm or at room temperature.

Nutrition Facts Estimated per 100g of product

Calories: 75kcal
Protein: 1g
Fat: 4g
Carbohydrates: 10g
Fiber: 1g
Sugar: 5g

Other Considerations for Nutrition

The nutrition facts are estimates and can vary depending on the specific ingredients used. The use of brown sugar and balsamic vinegar contributes to the sugar content.

← Balsamic Roasted Beets Crispy Roasted Kale with Lemon and Garlic →

FAQ

  • Can I use different types of onions?

    Yes, you can use other types of onions like red onions or sweet onions, but yellow onions are the most commonly used for caramelizing due to their balanced flavor.
  • Can I add garlic?

    Yes, adding minced garlic during the last 10 minutes of roasting can enhance the flavor of the caramelized onions.
  • How do I store leftovers?

    Store leftover caramelized onions in an airtight container in the refrigerator for up to 5 days. Reheat gently in a pan or microwave before serving.