Roasted Red Onions with Thyme and Butter
Elevate your side dish game with these irresistible Roasted Red Onions with Thyme and Butter, a recipe that combines simple ingredients with gourmet-worthy flavor. Sweet, tender red onions are roasted to perfection in a blend of buttery richness, fragrant fresh thyme, and a hint of honey and balsamic vinegar for subtle caramelization. This oven-roasted recipe takes just 10 minutes to prepare and delivers warm, golden onions with layers of savory, sweet, and tangy notes. Perfect as a standalone side dish or a versatile addition to salads, sandwiches, and roasted meats, these caramelized onions will quickly become a favorite for weeknight dinners and holiday feasts alike. Rich in aroma and bursting with flavor, this easy and elegant recipe is sure to wow your table.
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Recipe Information
Ingredients
- 4 large red onions
- 3 tablespoons unsalted butter
- 1 tablespoon extra virgin olive oil
- 6 sprigs fresh thyme sprigs
- 1 teaspoon honey
- 1 tablespoon balsamic vinegar
- 1 teaspoon kosher salt
- 0.5 teaspoon black pepper
Instructions
Preheat your oven to 400°F (200°C).
Peel the red onions and cut them into halves or quarters, depending on their size. Ensure each piece has a bit of the root intact to hold it together during roasting.
In a small saucepan, melt the unsalted butter over low heat. Once melted, stir in the olive oil, honey, and balsamic vinegar until well combined. Remove from heat.
Place the red onion pieces in a single layer in a large baking dish or a rimmed baking sheet.
Drizzle the butter mixture evenly over the onions. Sprinkle with kosher salt and black pepper to taste.
Add the fresh thyme sprigs on top of and around the onions for a fragrant flavor infusion.
Roast in the preheated oven for 35-40 minutes, turning the onions halfway through cooking to ensure even caramelization. The onions should be tender and lightly browned on the edges.
Remove the onions from the oven and let them rest for a few minutes. Discard the thyme sprigs before serving.
Serve warm as a flavorful side dish, or add to salads, sandwiches, or roasted meats.
Nutrition Facts
Calories |
175 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 12.0 g | 15% | |
| Saturated Fat | 6.0 g | 30% | |
| Polyunsaturated Fat | 0.0 g | ||
| Cholesterol | 23 mg | 8% | |
| Sodium | 156 mg | 7% | |
| Total Carbohydrate | 16.2 g | 6% | |
| Dietary Fiber | 2.7 g | 10% | |
| Total Sugars | 8.4 g | ||
| Protein | 1.9 g | 4% | |
| Vitamin D | 0.1 mcg | 1% | |
| Calcium | 42 mg | 3% | |
| Iron | 0.5 mg | 3% | |
| Potassium | 233 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.
