Oven-Baked Caramelized Onions
Unlock the ultimate flavor boost with this recipe for Oven-Baked Caramelized Onions, a luxurious side dish that doubles as a versatile condiment. With just a handful of ingredients like large onions, olive oil, balsamic vinegar, and aromatic fresh thyme, you’ll create perfectly tender onions, deeply caramelized in the oven for maximum sweetness and flavor complexity. This hands-off method streamlines traditional caramelizing techniques, making it incredibly simple and more approachable. Whether served alongside steak or burgers, layered in a sandwich, or paired with a cheese platter, these richly flavored onions are sure to elevate your meal. Perfect for cozy dinner nights or elegant gatherings, this dish is a must-try for lovers of sweet-savory goodness!
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Recipe Information
Ingredients
- 4 large onions
- 3 tablespoons olive oil
- 2 tablespoons balsamic vinegar
- 1 teaspoon salt
- 0.5 teaspoon freshly ground black pepper
- 1 teaspoon fresh thyme leaves
- 2 garlic cloves, minced
Instructions
Preheat your oven to 400°F (200°C).
Peel the onions and slice them in half through the root end. Trim the root end slightly but keep it intact so the layers hold together.
Place the onion halves in a baking dish with the cut sides facing up.
Drizzle the olive oil evenly over the onions to ensure they are well-coated.
In a small bowl, whisk together the balsamic vinegar, salt, black pepper, minced garlic, and thyme leaves.
Pour the balsamic mixture over the onions, ensuring all the onions get a coating of the flavorful liquid.
Cover the baking dish with aluminum foil and place it in the preheated oven.
Bake the onions for 45 minutes, then remove the foil and bake for an additional 15 minutes until the onions are tender and caramelized.
Remove the baking dish from the oven and let the onions rest for about 5 minutes before serving.
Serve the baked onions as a side dish or topping for steaks, burgers, or other entrees.
Nutrition Facts
Calories |
659 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 42.8 g | 55% | |
| Saturated Fat | 6.5 g | 32% | |
| Polyunsaturated Fat | 4.0 g | ||
| Cholesterol | 0 mg | 0% | |
| Sodium | 2394 mg | 104% | |
| Total Carbohydrate | 64.2 g | 23% | |
| Dietary Fiber | 11.0 g | 39% | |
| Total Sugars | 32.0 g | ||
| Protein | 7.5 g | 15% | |
| Vitamin D | 0.0 mcg | 0% | |
| Calcium | 176 mg | 14% | |
| Iron | 1.8 mg | 10% | |
| Potassium | 1048 mg | 22% | |
*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.
