Pressure Cooker Caramelized Onions

  • Yield: 3
  • Servings: 3
  • Prep Time: 20m
  • Cook Time: 60m
  • Ready In: 1:20 h

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Nutritional Info

This information is per serving.

  • Calories

  • Carbohydrates

    9.1 g
  • Cholesterol

    23 mg
  • Fat

    8.8 g
  • Fiber

    1.2 g
  • Protein

    1.2 g
  • Saturated Fat

    5.5 g
  • Serving Size

  • Sodium

    219 mg
  • Sugar

    4.5 g
  • Trans Fat

    1 g
  • Unsaturated Fat

    0.4 g
  • Potassium

    144 mg
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Pressure cooker caramelized onions. Caramelized onions are a healthy and the favorite component of many dishes, cooked in a pressure cooker. Use them as a topping for a hamburger or pizza, serve as a side dish for a steak, or use for a famous French onion soup.

This recipe is for a stovetop pressure cooker. If you have an electric instant pot, use this cooking method:

Pressure Cooker Caramelized Onions (Electric Pot)

Ingredients: 6 tablespoons unsalted butter, 3 pounds (1.44 kg) yellow or mixed onions, sliced, 1/2 teaspoon baking soda, kosher salt, and freshly ground black pepper, to taste

Method: Melt the butter in an electric pressure cooker and turned to brown function. Add sliced onions and baking soda and stir well to combine. Cook, stirring occasionally, until onions slightly soften, for about 3 minutes.

Close the pot and lock the lid. Set the machine to cook at high pressure. Set the timer to cook for 20 minutes. Using the Natural Release method, bring pressure to normal. Unlock and open the lid. Continue cooking with the lid off, stirring constantly, until the liquid inside is completely reduced and the onions are brown and sticky, for a further 5 minutes.

For vegans, substitute coconut oil for butter.

How to Make Caramelized Onions in a Pressure Cooker

Pressure cooker caramelized onions are a game-changer when it comes to saving time in the kitchen. Caramelized onions add a rich and sweet flavor to many dishes, and with a pressure cooker, you can achieve that deliciousness in a fraction of the time.

To make pressure cooker caramelized onions, start by peeling and julienned 1 pound (480 g) of yellow onions. The julienned shape allows the onions to cook evenly and quickly. Next, add the onions to the pressure cooker along with 3 tablespoons of unsalted butter, cut into cubes. The butter helps to enhance the caramelization process and adds a creamy richness to the onions.

To speed up the caramelization process even further, add 1/4 teaspoon of baking soda to the onions. The baking soda helps to break down the onions’ cell walls, allowing them to caramelize more quickly. Season the onions with salt, freshly ground black pepper, and a pinch of sugar to enhance their natural sweetness.

Once all the ingredients are in the pressure cooker, lock the lid in place and set the cooker to high pressure. Cook the onions for about 10 minutes, or until they are soft and golden brown. The pressure cooker creates a sealed environment that traps the steam, intensifying the flavors and speeding up the caramelization process.

Once the onions are caramelized to your liking, carefully release the pressure from the cooker and remove the lid. The result is a batch of perfectly caramelized onions that can be used in a variety of dishes, from soups and stews to sandwiches and pizzas.

In just a fraction of the time, you can enjoy the sweet and savory flavor of caramelized onions thanks to the pressure cooker. It’s a convenient and efficient way to elevate your dishes and add depth of flavor. So, give it a try and see how pressure cooker caramelized onions can transform your cooking.

Caramelized Onions Serving Suggestions

1. Topping for Burgers: Add a generous spoonful of caramelized onions on top of your favorite burger. The sweetness of the onions pairs perfectly with the savory flavors of the meat, creating a mouthwatering combination.

2. Pizza Topping: Spread a layer of caramelized onions on your pizza crust before adding the sauce and toppings. The onions will add a depth of flavor and a touch of sweetness to your pizza.

3. Sandwich Filling: Use caramelized onions as a filling for sandwiches. They pair well with grilled cheese, roast beef, or turkey. The onions add a rich and flavorful element to your sandwich.

4. Pasta Sauce: Stir caramelized onions into your favorite pasta sauce for an extra burst of flavor. The sweetness of the onions complements the acidity of the tomatoes, creating a well-balanced sauce.

5. Omelette or Quiche: Fold caramelized onions into your omelettte or quiche for a delicious breakfast or brunch option. The onions add a touch of sweetness and elevate the overall flavor of the dish.

6. Side Dish: Serve caramelized onions as a side dish alongside roasted meats or grilled vegetables. The onions provide a sweet and savory element that complements a variety of main dishes.

By incorporating pressure cooker caramelized onions into these serving suggestions, you can elevate your meals and impress your family and friends with the depth of flavor they bring. Enjoy experimenting with different dishes and discovering new ways to use caramelized onions in your cooking.

You can also prepare this dish in a slow cooker-Slow Cooker Caramelized Sweet Onions

How to Store Leftovers

Leftover caramelized onions can be stored in the refrigerator for up to 5 days, allowing you to enjoy their delicious flavor in multiple meals. Here are some tips on how to store your pressure cooker caramelized onions to maintain their freshness and taste.

1. Cool Completely: Before storing the caramelized onions, make sure they have cooled down completely. This will prevent condensation from forming inside the container, which can lead to spoilage.

2. Use Airtight Containers: Transfer the caramelized onions to airtight containers or resealable bags. This will help to keep them fresh and prevent any odors from seeping into the onions.

3. Label and Date: It’s important to label the containers with the date of storage. This will help you keep track of how long the onions have been stored and ensure you use them within the recommended timeframe.

4. Freeze for Long-Term Storage: If you have a large batch of caramelized onions and don’t plan on using them within 5 days, you can freeze them for longer storage. Place the onions in freezer-safe containers or bags, removing as much air as possible. Frozen caramelized onions can be stored for up to 3 months.

5. Thawing and Reheating: When you’re ready to use the stored caramelized onions, thaw them in the refrigerator overnight. To reheat, simply warm them in a skillet over low heat until heated through.

By following these storage tips, you can ensure that your pressure cooker caramelized onions stay fresh and flavorful, allowing you to enjoy their delicious taste in various dishes whenever you desire.

Pressure Cooker Caramelized Onions


  • 1 pound (480 g) yellow onions, peeled and julienned
  • 1/4 teaspoon baking soda
  • 3 tablespoons unsalted butter, cut into cubes
  • salt, freshly ground black pepper, and sugar,to taste


Step 1

In a large bowl, combine onions and baking soda. Mix thoroughly. Divide the onion mixture into three 16 oz (480 ml) canning jars.

Step 2

Divide cubed butter evenly among the filled jars. Tight the lids of jars, and then unscrew them 1/4 turn so that jars do not explode.

Step 3

Arrange jars on a rack in the base of the pressure cooker. Pour over 1 inch (2.54 cm) of water.

Step 4

Pressure-cook at a gauge pressure of 1 bar/15 psi for 40 minutes. Start timing as soon as full pressure has been reached.

Step 5

Allow the pressure cooker to cool. Transfer cooked onions to a pot.

Step 6

Simmer over medium heat, stirring occasionally, until cooking liquid has reduced to a syrup, for about 10-12 minutes.

Step 7

Season caramelized onions to taste with salt, sugar, and black pepper. Serve warm.

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