How to Make Caramelized Onions

Anne Lawton
by Anne Lawton
2 cups
50 min

It takes just a few ingredients and some time to make caramelized onions. Most of the time is hands-off time and they are worth the time! They cook low and slow until they become deliciously sweet and melt in your mouth. Homemade caramelized onions can turn just about any dish into an amazing creation.

Make a batch of these and keep them in the refrigerator to serve on burgers, sandwiches, burgers, soups, dips, and so much more.

Caramelized onions add so much flavor to just about everything!

Melt butter and oil in a heavy skillet

Cook the onions over low heat

The onions will reduce in size and turn brown.

How to Make Caramelized Onions
Recipe details
  • 2  cups
  • Prep time: 10 Minutes Cook time: 40 Minutes Total time: 50 min
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  • 2 large onions
  • 1 tablespoon olive oil
  • ½ tablespoon unsalted organic butter
  • ¼ teaspoon sea salt
  • water as needed

Use a sharp knife to cut off the stem and the root of the onions
Cut the onions in half from the stem to the root end and remove the skin
Place the onion halves on a cutting board cut side down, and cut the onions into slices
Heat a skillet over medium-high heat. Once the skillet it add the butter and let it melt, then stir in the olive oil.
Add the onions and sprinkle them with sea salt - reduce heat to medium heat.
Allow the onions to sit undisturbed for about 5 minutes, then stir them and reduce the heat to medium to low.
Continue to cook the onions checking them every 5 minutes or so and giving them a stir each time until they begin to turn brown and have reduced in size. This can take up to 30 to 45 minutes.
  • Ingredient Notes:
  • Yello or sweet onions are the best choice of onions to caramelize. However, you can caramelize any type of onion.
  • Butter adds a rich buttery flavor to the onions, and can be replaced with all oil for a dairy-free version.
  • Tip
  • Frequent stirring and deglazing the pan with water will help to prevent the onions from burning.
  • Change up the water and use broth or beer to deglaze the skillet
Anne Lawton
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  • Alex Alex on Apr 08, 2022

    Thank you for the recipe easy to follow instructions but what do you mean by deglaze tha skillet?