Roasted Red Onions
Transform simple red onions into a show-stopping side dish with this recipe for Roasted Red Onions. Perfectly caramelized and infused with the rich flavors of balsamic vinegar, olive oil, and fresh thyme, these tender onion rounds offer both visual appeal and irresistible taste. With a short prep time and minimal ingredients, this oven-roasted dish is a breeze to make, whether you’re serving it alongside roasted meats or as a vegetarian-friendly accompaniment to your favorite meals. The vibrant color and subtle sweetness of the onions make them an elegant addition to any table, ideal for holiday feasts or casual weeknight dinners. Serve warm, and don’t forget the extra sprinkle of thyme for added freshness.
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Recipe Information
Ingredients
- 4 large red onions
- 3 tablespoons olive oil
- 1 tablespoon balsamic vinegar
- 2 teaspoons fresh thyme
- 1 teaspoon kosher salt
- 0.5 teaspoon black pepper
Instructions
Preheat your oven to 400°F (200°C).
Peel the red onions and slice them into 1/2-inch thick rounds, keeping them intact as much as possible.
Drizzle 1 tablespoon of olive oil onto a large baking sheet, spreading it evenly to prevent sticking.
Arrange the onion rounds in a single layer on the prepared baking sheet.
In a small bowl, whisk together 2 tablespoons of olive oil and 1 tablespoon of balsamic vinegar. Drizzle this mixture evenly over the onions.
Sprinkle the thyme leaves, kosher salt, and black pepper over the onions, making sure they are evenly distributed.
Transfer the baking sheet to the preheated oven and roast for 35-40 minutes, or until the onions are tender and caramelized, turning them once halfway through the cooking time.
Remove from the oven and allow the onions to cool slightly. Serve warm as a side dish, garnished with more fresh thyme if desired.
Nutrition Facts
Calories |
154 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 10.4 g | 13% | |
| Saturated Fat | 1.5 g | 7% | |
| Polyunsaturated Fat | 0.0 g | ||
| Cholesterol | 0 mg | 0% | |
| Sodium | 155 mg | 7% | |
| Total Carbohydrate | 14.8 g | 5% | |
| Dietary Fiber | 2.6 g | 9% | |
| Total Sugars | 6.9 g | ||
| Protein | 1.8 g | 4% | |
| Vitamin D | 0.0 mcg | 0% | |
| Calcium | 39 mg | 3% | |
| Iron | 0.5 mg | 3% | |
| Potassium | 229 mg | 5% | |
*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
