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    You are Here: Masala Herb » Recipes » DIY Food

    Simple Caramelized Onion Recipe

    Jun 22, 2025 by Helene Dsouza

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    Helene Dsouza
    Slowly cooked onions in a skillet with a few ingredients. This is a basic DIY caramelized onions recipe.
    Total Time: 50 minutes minutes
    Prep Time: 5 minutes minutes
    Cook Time: 45 minutes minutes
    2 servings
    RECIPE
    image of caramelized onions
    process of caramelizing onions
    onions in sugar and butter

    Caramelized Onion are cooked slowly in a skillet, releasing natural sweet flavors as they turn brown and super delicious!

    This is a simple recipe that shows how to make, including ideas to use your homemade caramelized onions.

    onions caramelized homemade
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    Jump to:
    • 📕 What are caramelized onion?
    • 🧅 Ingredients
    • 🔪 How to make caramelized onions?
    • 🍴 Uses
    • 🍱 Storing
    • 💭 FAQs
    • 📖 Recipe
    • 💬 Comments

    📕 What are caramelized onion?

    Caramelized onions are slowly cooked in a skillet and that way the natural sugars are released and "candied".

    It has to be done slowly so that the onions don't burn and that takes time.

    There is no shortcut for perfect delicious caramelized onions.

    But you can help yourself by using a non-stick frying pan/skillet. That way you won't need to use that much fats and the onions are less likely to burn on.

    Tip: Use only BPA and PFOA-free non-stick frying pans and skillets to avoid contaminating your food with harmful chemicals.

    caramelized onions close up

    🧅 Ingredients

    I kept this recipe simple because the onions taste great as is, but I do share some seasoning options below:

    • Onions - any will do. I use red onions but you can use yellow, white, and pearl onions too. Each onion variety has its perks but some are definitely naturally sweeter than others. Spanish onions and Vidalia onions are super sweet and you won't need to add sugar if you use these onions.
    • Butter - Brings out all the flavor and I don't recommend switching with other fats. Butter makes it taste so delicious caramelized.
    • Salt and Black Pepper - I like to use pink salt or another salt that tastes umami. I use freshly crushed black peppercorns for the best flavor effect.
    • Sugar - I love to add some brown sugar. It's optional, so if you want to go low carb, skip the sugar. Some onion varieties don't need the addition of sugar, so if you use a sweet onion variety, also skip the sugar in this recipe.

    That's it! These are the main ingredients, however you can also add some other seasoning such as a few drops of tabasco sauce, Worcestershire sauce or balsamic vinegar.

    🔪 How to make caramelized onions?

    Making caramelized onions is easy but you need to keep an eye on them so that they don't burn.

    Here is an overview to give you an idea, the full recipe with US and metric adjustable measurements is located further below in the recipe card.

    Step 1

    Peel and cut onions.

    Cut them into half or quarters and into slices. The slices shouldn't be too thick nor too thin.

    slice onions

    Step 2

    Heat up a pan with butter and add the onion.

    Sauté onions and season.

    season sauteed onions

    Step 3

    Cook onions down over a slow heat setting, stirring every now and then.

    This will take about 40 minutes or until you are satisfied and the caramelized onions have turned the way you like them.

    slowly cooking down onion to caramelize

    🍴 Uses

    I just eat my sweet cooked onions straight out of the pan. I can barley stop myself but there are so many great uses for homemade caramelized onions.

    You can add them to your burger, pizza, pasta or toast. A caramelized onion dip makes for a great party appetizer.

    Serve as a side dish with steak, beef tenderloin, pork tenderloin, chicken breast, sausages or sauteed mushrooms and bell peppers.

    Caramelized onions are great in egg-based dishes too such as quiche, frittata, or omelette. I love them in our French onion tart.

    You can enhance your mashed potatoes, risotto, focaccia bread, chickpea hummus and goat cheese appetizers with these sweet-tasting browned onions.

    skillet caramelized onions

    🍱 Storing

    You can make these onions ahead of time.

    Store your caramelized onions for up to 5 days in your fridge in an airtight container.

    Warm them gradually up in a pan. When they sizzle a bit and they are hot enough, they are ready.

    I don't recommend freezing them because their consistency will be weird when you thaw and reheat them.

    Except if you freeze them in batches on a tray, so that they are separated a bit from each other. You don't want clumps.

    That way you can reheat them in the oven and they will turn a bit crispy too.

    💭 FAQs

    How long does it take to caramelize onions?

    About 40-50 minutes from start to finish. Choose when they are done, they can be light brown to medium light, like mine, or darker shaded.

    What temperature to cook the onions so that they caramelize?

    In the beginning, you need to simply sauté them over a medium heat setting. The onions will turn glossy and then you need to be careful that they don't burn so you will need to reduce the heat and stir more frequently. The onions will need to caramelize slowly so that the sugars are released at the right temperature. Keep over the lowest heat setting until they are done and fully caramelized.

    What's the difference between caramelizing and sautéing onions?

    Caramelized onions are prepared by first sautéing them. The heat is then reduced and the onions are slowly cooked, which released all the beautiful natural sugars in the onion. Sautéing is just cooking onions for a short time over a medium heat setting until they are translucent or glossy.

    How to make this fast?

    There is no faster method to caramelize onions.

    Simple Caramelized Onion Recipe pin image

    📖 Recipe

    image of caramelized onions

    Simple Caramelized Onion Recipe

    Slowly cooked onions in a skillet with a few ingredients. This is a basic DIY caramelized onions recipe.
    5 from 1 vote
    Print Pin Rate
    Course: DIY
    Cuisine: American
    Diet: Gluten Free, Hindu, Vegetarian
    Prep Time: 5 minutes minutes
    Cook Time: 45 minutes minutes
    Total Time: 50 minutes minutes
    Servings: 2 servings
    Calories: 253kcal
    Recipe by: Helene Dsouza

    Ingredients

    • 3 large Onion *see Notes
    • 3 Tablespoon Butter
    • ¼ Teaspoon Salt
    • ¼ Teaspoon Black Pepper Ground
    • ½ Tablespoon Sugar optional, brown sugar is great!

    Instructions

    • Peel your onions and cut them into half or quarters. Cut into not too thick and not too thin slices. All should be the same.
    • Heat up a pan and add your butter. Melt butter and stir in onion slices.
    • Keep over a medium heat setting and sauté onions until translucent.
    • Takedown the heat a notch and season with salt, black pepper, and if you want you can add sugar too. Stir mix.
    • When the onions start to get some color, take down the heat further to the minimum stove setting. Or else your onions will burn and won't caramelize.
    • Keep cooking it on slow heat for about 40 mins or until you are satisfied with the caramelization degree. Stir occasionally to prevent the onions from burning.
    • The onions will get sweeter over time and the quantity will reduce significantly. Decide if you want them to be light brown or darker brown. Take from the heat.
    • Use in your favorite food as a topping, in dinner meals, breads, dips etc.

    Notes

    1. Pick an onion variety that you like. I used purple onions because that's what I got here. Yellow ones are more suitable, but purple onions are not that sharp too. 3 large onions equal to 5 medium-small onions.
    2. Use a non-stick PFOA and BPA-free skillet or frying pan. That way the onions are less likely to burn.

    Equipment

    • Cutting Board
    • 8" Chef Knife
    • Stainless Steal Non-Stick PFOA-free Frying Pan
    • Wood or Bamboo Spatula

    Nutrition

    Nutrition Facts
    Simple Caramelized Onion Recipe
    Amount Per Serving
    Calories 253 Calories from Fat 153
    % Daily Value*
    Fat 17g26%
    Saturated Fat 11g55%
    Trans Fat 1g
    Cholesterol 45mg15%
    Sodium 450mg19%
    Potassium 337mg10%
    Carbohydrates 24g8%
    Fiber 4g16%
    Sugar 13g14%
    Protein 3g6%
    Vitamin A 531IU11%
    Vitamin C 17mg21%
    Calcium 58mg6%
    Iron 1mg6%
    * Percent Daily Values are based on a 2000 calorie diet.
    671 shares
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    I am Helene, and I created Masala Herb in 2011. Here you will learn to cook with spices and herbs. I share from scratch, international food recipes and my mission is to teach you to cook flavorful food at home. Read More…

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    Welcome

    Hi there! I'm Helene and here you will learn how to cook with spices and herbs. Discover global food and learn to season your food like a pro. Read more about my work and mission or head over to my food ingredient space, Unknownbite.com, and our travel space, Paulmarina.com!

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