Roast Onions
Transform simple onions into a show-stopping side dish with this easy recipe for Roast Onions. Featuring caramelized edges, tender centers, and a subtle infusion of olive oil, this recipe elevates the natural sweetness of yellow, white, or red onions. The optional addition of balsamic vinegar lends a tangy depth, while fresh thyme adds a fragrant, herbaceous touch. With just 10 minutes of prep and a perfectly roasted finish in under an hour, these golden-brown onions are an effortless yet elegant accompaniment to roasts, salads, or grain bowls. Perfect for weeknight dinners or holiday spreads, this recipe is gluten-free, vegetarian, and irresistibly versatile.
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Ingredients
- 4 pieces Large onions (yellow, white, or red)
- 2 tablespoons Olive oil
- 1 teaspoon Salt
- 0.5 teaspoons Black pepper
- 1 tablespoon Balsamic vinegar (optional)
- 2 sprigs Fresh thyme (optional)
Directions
Step 1
Preheat your oven to 400°F (200°C).
Step 2
Peel the onions, trim the bottoms slightly to create a flat base, and cut each onion in half from root to tip.
Step 3
Drizzle a baking dish or sheet pan with 1 tablespoon of olive oil to lightly coat the surface.
Step 4
Place the onion halves cut-side up in the baking dish and drizzle with the remaining 1 tablespoon of olive oil.
Step 5
Sprinkle the onions with salt and black pepper, ensuring even distribution.
Step 6
If using, drizzle the onions with balsamic vinegar for added flavor and place the fresh thyme sprigs on top or alongside the onions.
Step 7
Cover the dish tightly with aluminum foil and roast in the oven for 25 minutes to allow the onions to soften.
Step 8
Remove the foil and roast uncovered for an additional 20 minutes, or until the onions are golden brown and caramelized around the edges.
Step 9
Remove the onions from the oven and let them cool slightly before serving as a side dish or topping for your favorite meals.
Nutrition Facts
| Serving size | 652.1 grams (652.1g) |
|---|
| Amount per serving | % Daily Value* |
|---|---|
| Calories | 510 |
| Total Fat 28.40g | 36% |
| Saturated Fat 4.40g | 22% |
| Polyunsaturated Fat 2.70g | |
| Cholesterol 0mg | 0% |
| Sodium 2389mg | 104% |
| Total Carbohydrate 59.70g | 22% |
| Dietary Fiber 10.90g | 39% |
| Total Sugars 29.50g | |
| Protein 7.00g | 14% |
| Vitamin D 0IU | 0% |
| Calcium 159mg | 12% |
| Iron 2mg | 9% |
| Potassium 874mg | 19% |
Source of Calories