Description
These homemade Caramelized Onions are rich, buttery, sweet, and packed with deep savory flavor. Slowly cooked over low heat until perfectly golden brown, they’re the ultimate topping for burgers, steaks, sandwiches, pizzas, hot dogs, pasta, mashed potatoes, omelets, and more. Made with just a handful of simple ingredients, this easy recipe delivers restaurant-quality results right in your own kitchen.
Ingredients
Scale
- 2 large yellow onions, thinly sliced
- 2 tablespoons unsalted butter
- 1 tablespoon olive oil
- ½ teaspoon kosher salt
- ¼ teaspoon black pepper
- 1 teaspoon brown sugar (optional)
- 1 tablespoon balsamic vinegar (optional)
Instructions
- Peel the onions and slice them into thin, even strips.
- Heat the butter and olive oil in a large skillet over medium heat until the butter melts.
- Add the onions, salt, and black pepper. Stir to coat the onions evenly.
- Reduce the heat to medium-low and cook for 35–45 minutes, stirring every few minutes.
- If the onions begin sticking to the pan, add 1–2 tablespoons of water and scrape up the browned bits.
- Continue cooking until the onions are deep golden brown, soft, and jam-like.
- Stir in the optional brown sugar and balsamic vinegar during the last 2 minutes of cooking.
- Taste and adjust the seasoning if needed.
- Serve immediately or let cool before storing.
Notes
- Cook the onions slowly over low heat for the best flavor.
- Yellow onions provide the perfect balance of sweetness and richness.
- Don’t rush the process by increasing the heat.
- Deglaze the pan with a splash of water whenever needed.
- Caramelized onions can be refrigerated for up to 5 days or frozen for up to 3 months.
Nutrition
- Calories: 95
- Sugar: 5 g
- Sodium: 180 mg
- Fat: 7 g
- Saturated Fat: 3 g
- Carbohydrates: 8 g
- Fiber: 1 g
- Protein: 1 g