How To Make Caramelized Onions For Topping Burgers & Steak!

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Ever wanted to know how to make Caramelized Onions? Well, look no further! They may take a little while to prepare but they will elevate your burgers, steak, or pizzas to a whole new level! 

A skilled with caramelized onions. Text overlay says"Caramelized Onions". Similar photos of the recipe from various angles are used throughout but with different text overlays unless otherwise described.

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How To Make Caramelized Onions

The full ingredients list and instructions are found in the printable recipe card at the end of this post. I highly recommend reading the blog post all the way through so that you don’t miss any tips or substitution suggestions, to ensure that you have all the ingredients and equipment required and understand the steps and timings involved.

Although caramelized onions take a little time to prepare, they are well worth the effort. This humble vegetable dish can add so much flavor and depth to your meals.

The cook time might be long (about an hour), but they are so easy to make using just five ingredients!


Ingredients & Equipment Used In This Recipe

While most ingredients can be bought in grocery stores, for your convenience, any specialized or notable ingredients and equipment needed for this recipe have been linked to Amazon or other stores if available online.

It may not include staple ingredients such as oil, salt, sugar, etc., as you’re likely to have those in your kitchen. The complete list of ingredients with measurements is found in the recipe card.

Recipes on The Purple Pumpkin Blog use both cup measurements and/or weighted measurements. American cups and kitchen food scales are handy pieces of equipment to have in your kitchen as it means you’ll be able to make all of the different recipes on my blog. I try to give American, imperial, and metric measurements in my recipes. Please note, you can mix cup measurements with weighted measurements, but never mix imperial (pounds, ounces, pints, etc.,) with metric (kilograms, grams, litres, etc.,).

Multiple images of onions cooking in a skillet at various time points so onions are various shades of caramelization. Text overlay: How To Make Caramelized Onions

More Recipes Using Onions

The hero ingredient in this dish is onion, so here are some more recipes using the same:

Recipes To Use Caramelized Onions

Here are some great recipes to use your caramelized onions in:

Caramelized Onions for Burgers and Steak

How Do I Make Caramelized Onions?

Check out the printable recipe card below with full ingredients and instructions. Any demonstration photos do not print out to save your ink.

Caramelized Onions Recipe

Caramelized Onions

Yield: 4
Prep Time: 15 minutes
Cook Time: 1 hour
Total Time: 1 hour 15 minutes

Ever wanted to know how to make the perfect Caramelized Onions? Well, look no further!


  • 3 large yellow onions
  • 3 Tbsp unsalted butter
  • 2 Tbsp extra virgin olive oil
  • Sea salt and black pepper, to taste
  • 1/3 cup balsamic vinegar


  1. Remove both ends of onion and cut in half lengthwise. Turn one piece of onion onto a flat side and cut into thin slices, working from one end to another. Repeat until all onions are sliced.
  2. Melt butter in a large skillet over medium heat. Add onion slices to skillet and drizzle olive oil over the top. Season with salt and black pepper, to taste, and stir to combine.

    Chopped Onions in Pan
  3. Slowly cook the onions down over medium heat for 45 minutes to an hour. (Total cooking time will depend on how many onions were used, the sugar content in the onions, and how old they are). Stir the onions every 5 or 10 minutes while they are cooking to prevent scorching.

    Process of Caramelizing Onions

    Process of Caramelizing Onions

    Process of Caramelizing Onions

    Process of Caramelizing Onions
  4. Once the onions are done caramelizing, add balsamic vinegar to deglaze the pan. While the liquid is bubbling, gently scrape the bottom of the pan with a wooden spoon to incorporate the brown bits on the bottom of the pan into the onions.

    Adding Balsamic to Caramelized Onions
  5. Season with additional salt and black pepper, if desired. Use immediately, or cool and store in the refrigerator for up to one week. Enjoy!

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Nutrition Information:
Yield: 4 Serving Size: 1
Amount Per Serving: Calories: 197Total Fat: 16gSaturated Fat: 6gTrans Fat: 0gUnsaturated Fat: 9gCholesterol: 23mgSodium: 83mgCarbohydrates: 13gFiber: 1gSugar: 8gProtein: 2g

This site uses Nutritionix to provide estimated nutrition. Nutritional information is always approximate and will depend on the quality of ingredients used and serving sizes. If you need exact calories and macros, please do your own calculations.

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Make It A Special Dinner!

You’ve made the side, but what about the rest of the courses?

Here are additional recipes to create a menu for a special meal or dinner party:

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