Description
Caramelized onions are rich, sweet, and savory, perfect for adding depth to burgers, sandwiches, pizzas, and more. Slowly cooked to perfection, they bring a natural sweetness that enhances a variety of dishes. Learn how to make perfect caramelized onions at home with this easy recipe.
Ingredients
4 large yellow or white onions, thinly sliced
2 tablespoons unsalted butter
1 tablespoon olive oil
1/2 teaspoon kosher salt
1 tablespoon balsamic vinegar (optional)
1 teaspoon sugar (optional, for extra sweetness)
Instructions
- Heat the butter and olive oil in a large skillet over medium heat until melted.
- Add the thinly sliced onions, stirring to coat them evenly in the butter and oil. Sprinkle with kosher salt.
- Reduce the heat to medium-low and cook, stirring occasionally, for 40-50 minutes until the onions are soft and golden brown.
- For extra sweetness, stir in balsamic vinegar and sugar during the last 10 minutes of cooking.
- Serve immediately or store in an airtight container in the fridge for up to a week.
Notes
Stir the onions every 5-10 minutes to prevent burning and ensure even caramelization.
Add a splash of balsamic vinegar for extra depth, or sugar for increased sweetness.
Caramelized onions can be made in large batches and frozen for up to 3 months.
- Prep Time: 10 minutes
- Cook Time: 50 minutes
- Category: Side Dish, Topping
- Method: Stovetop, Slow Cook
- Cuisine: American
Nutrition
- Serving Size: 8 servings
- Calories: 60 kcal per serving
Keywords: caramelized onions, slow-cooked onions, sweet onions, how to make caramelized onions, caramelized onions for burgers, onion toppings