Balsamic Onions
Transform your everyday onion dish into something truly extraordinary with these rich, caramelized balsamic onions. This recipe combines the natural sweetness of yellow onions with the deep, tangy flavor of balsamic vinegar, enhanced by a touch of brown sugar and fresh thyme for added complexity. Sautéed in a luscious blend of olive oil and butter, the onions are cooked low and slow, creating a melt-in-your-mouth texture and irresistibly golden hue. Perfect as a flavorful side dish, a gourmet burger topping, or a savory addition to salads, sandwiches, and more, these balsamic onions elevate any meal with minimal effort. Ready in just 40 minutes and easy to store, they’re a versatile, make-ahead staple you’ll want to use again and again.
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Recipe Information
Ingredients
- 4 large yellow onions
- 2 tablespoons olive oil
- 1 tablespoon unsalted butter
- 3 tablespoons balsamic vinegar
- 2 teaspoons brown sugar
- 0.5 teaspoon kosher salt
- 0.25 teaspoon black pepper
- 1 teaspoon fresh thyme (optional)
Instructions
Peel and slice the onions into uniform 1/4-inch thick rings or half-moon slices, depending on your preference.
Heat a large skillet over medium heat and add the olive oil and butter. Stir until the butter melts and the mixture is hot.
Add the sliced onions to the skillet and spread them out evenly. Sprinkle with the kosher salt and toss to coat the onions in the oil and butter mixture.
Cook the onions over medium heat for 10 minutes, stirring occasionally to prevent burning and ensure even cooking.
Reduce the heat to low and continue cooking for an additional 15 minutes, stirring occasionally, until the onions become golden brown and start to caramelize.
Sprinkle in the brown sugar and pour in the balsamic vinegar. Stir to coat the onions evenly in the mixture.
Cook for another 5 minutes until the balsamic vinegar reduces slightly and the onions become glossy and richly caramelized.
Taste and adjust seasoning with additional salt and black pepper if needed. Stir in fresh thyme if using for added flavor.
Remove from heat and serve warm. Balsamic onions can be stored in an airtight container in the refrigerator for up to 5 days.
Nutrition Facts
Calories |
661 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 40.6 g | 52% | |
| Saturated Fat | 11.6 g | 58% | |
| Polyunsaturated Fat | 2.7 g | ||
| Cholesterol | 31 mg | 10% | |
| Sodium | 333 mg | 14% | |
| Total Carbohydrate | 71.2 g | 26% | |
| Dietary Fiber | 10.6 g | 38% | |
| Total Sugars | 38.7 g | ||
| Protein | 7.0 g | 14% | |
| Vitamin D | 0.0 mcg | 0% | |
| Calcium | 158 mg | 12% | |
| Iron | 2.1 mg | 12% | |
| Potassium | 1005 mg | 21% | |
*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.
