How to Make Caramelized Onions (The Best Balsamic Caramelized Onions!)

How to Make Caramelized Onions (The Best Balsamic Caramelized Onions!)

Learn how easy it is to make caramelized onions with balsamic. They have a rich, sweet flavor that's balanced beautifully with subtly fruity, slightly tangy balsamic vinegar. You'll find a ton of different ways to use them!

Course Condiments

Cuisine American

Keyword Balsamic Caramelized Onions, How to Caramelize Onions, How to Make Caramelized Onions

Prep Time 5

Cook Time 35

Servings servings

Calories 34kcal

Author Faith Gorsky

Ingredients

2 tablespoons unsalted butter
1 extremely large onion peeled and thinly sliced (about 5 cups sliced)
1/4 cup water slightly more or less as needed
1/2 teaspoon salt
2 tablespoons balsamic vinegar

US Customary - Metric

Instructions

Add the butter to a large skillet over medium heat. Once melted, add the onion.
Cook the onion until it is deep golden in color, about 30 minutes, stirring occasionally. Add a splash of water if the onion starts to stick to the pan, or if it starts to get too dark. Adjust the heat down as necessary so the onion doesn’t burn.
Once caramelized, stir in the salt and balsamic and cook about 1 minute, scraping up any brown bits from the bottom of the pan.
Remove from the heat.

Notes

Recipe Yield and Serving Size: This recipe makes about 1 cup of caramelized onions, or 8 (2-tablespoon) servings.
Storage: Once caramelized onion cools to room temperature, store it in an airtight container in the fridge for up to 1 week.

Nutrition