Elevate your dishes with the deep, sweet-savory flavor of Kittencal’s Caramelized Onions, an irresistible recipe that transforms simple yellow onions into a golden, velvety topping perfect for burgers, sandwiches, or charcuterie boards. With just a handful of kitchen staples—unsalted butter, olive oil, and the optional addition of sugar for sweetness or balsamic vinegar for a tangy finish—this recipe unlocks the magic of patience through a slow, 45-minute caramelization process. The result? Richly golden onions with layers of complex flavor, ideal for enhancing everything from pastas to pizzas. Whether you’re meal-prepping or serving it fresh, these melt-in-your-mouth caramelized onions will take your cooking to gourmet levels.
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Peel and slice the onions thinly into half-moon shapes.
In a large skillet, heat the butter and olive oil over medium heat until the butter is fully melted and begins to foam.
Add the sliced onions to the skillet, spreading them out in an even layer.
Sprinkle the salt (and optional sugar, if desired) over the onions to help draw out their natural moisture.
Reduce the heat to medium-low and cook the onions, stirring every 5–7 minutes to ensure even caramelization.
If the onions start to stick to the pan, deglaze with a splash of water, stirring to release the browned bits.
After 30–35 minutes, the onions should be golden brown and tender. For enhanced depth of flavor, stir in balsamic vinegar and cook for an additional 5 minutes.
Remove the skillet from heat and allow the onions to cool slightly before serving or using them as a topping.
Serving size | (673.2g) |
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Amount per serving | % Daily Value* |
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Calories | 722.1 |
Total Fat 52.5g | 0% |
Saturated Fat 18.6g | 0% |
Polyunsaturated Fat 2.7g | |
Cholesterol 62mg | 0% |
Sodium 1209.0mg | 0% |
Total Carbohydrate 62.7g | 0% |
Dietary Fiber 10.4g | 0% |
Total Sugars 31.4g | |
Protein 6.8g | 0% |
Vitamin D 0IU | 0% |
Calcium 134.4mg | 0% |
Iron 1.3mg | 0% |
Potassium 896.5mg | 0% |
Source of Calories