Keto Instant Pot Broccoli Cheddar Soup Low Carb Recipe | KetoVale
keto instant pot broccoli cheese soup

Keto Instant Pot Broccoli Cheddar Soup Low Carb Recipe

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Imagine wrapping yourself in a warm, comforting blanket on a chilly evening; that’s the hug your taste buds will get with this Keto Instant Pot Broccoli Cheddar Soup.

There has been much discussion about soup. Some say it is a daily must-have. Some say it is completely useless and does not keep you hydrated.

Some people think soup should not contain meat broth. There are those who say it does not contain any vitamins and contains less nutrients than main courses. 

It’s true that some soups, especially canned soups, contain few very nutrients for the large amount of calories you’re getting. Some are hidden sources of flour, cornstarch, sugar, and inflammatory vegetable oils. However, making your own soup from scratch using this recipe ensures that you’ll be using your calories wisely. 

keto instant pot broccoli cheese soup

This instant pot low-carb broccoli cheese soup is made with high-quality ingredients, including onion, which is high in vitamin K, vitamin A, vitamin C, and folate. Onions are also low-calorie and have a low glycemic index so that they won’t spike your blood sugar levels. 

Additionally, onions are a good source of prebiotic fiber to help fuel the good bacteria in your gut and boost immunity. 

Garlic has vitamin B6, manganese, vitamin C, and copper while broccoli is a nutritional powerhouse full of vitamins, minerals, fiber and antioxidants. Research shows that broccoli helps suppress cancerous tumor growth (1). It’s also low in carbs and calories and fits perfectly in any healthy diet.

If you don’t have broccoli, you can use cauliflower or other leafy green vegetables such as spinach instead.

low carb instant pot broccoli cheese soup

Other ingredients in this recipe include cheddar, which is a good source of fat and protein, and heavy cream, which is great for keto dieters because of its high fat and low carb profile. The healthy fats found in these foods also help increase the bioavailability of many of the antioxidant nutrients found in the broccoli. 

Heavy cream and cheddar also give this soup a delightful creaminess that will fill you up all by itself! Finally, nutmeg contains an abundance of antioxidants, including plant pigments like cyanidins and essential oils. You can use other substitutes for nutmeg or simply skip it.

To thicken the soup, you can use xanthan gum. It’s a keto-friendly cornstarch substitute for low-carb soup and sauce recipes.

You can serve this soup as a main course or enjoy alongside a nice steak for the perfect keto meal!

How to Make Low Carb Instant Pot Broccoli Cheddar Soup

Press the “saute” button on your instant pot. Add the butter, onion, garlic and sea salt. Cook until the onion is transparent, about 3-4 minutes.

saute butter onion garlic

Pour in the chicken broth. Add the broccoli and nutmeg. Cover and cook on manual high pressure mode for 3 minutes. 

add broccoli chicken broth

When the time is up, press the “cancel” button and release the pressure. Take the lid off and add the heavy cream.

add heavy cream to soup

Stir in the cheddar cheese by adding it in batches and stirring until it’s melted and well combined with the rest of the ingredients. Add xanthan gum if you want the soup to be thicker.

add cheddar xanthan gum

Serve warm! Check my Keto Cream of Broccoli Soup and Keto Broccoli Cheese Soup recipe if you don’t have an Instant Pot.

More Low-Carb Soup Recipes You Can Make:

keto instant pot broccoli cheese soup
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5 from 5 votes

Keto Instant Pot Broccoli Cheddar Soup

A very creamy and rich broccoli cheese soup made in an Instant Pot that is low-carb and keto-friendly, perfect for a light meal or side dish.
Course Soup
Cuisine Ketogenic, Low Carb
Keyword broccoli cheese soup, instant pot broccoli cheese soup
Prep Time 5 minutes
Cook Time 10 minutes
Total Time 15 minutes
Servings 6
Calories 416kcal
Author Tanya K.


  • 1 onion small, finely chopped
  • 1 clove garlic minced
  • 1 tbsp butter
  • 5 cups chicken broth
  • 3 cups broccoli small florets
  • 1 pinch nutmeg
  • ½ tsp sea salt
  • 3 cup cheddar cheese mild, shredded
  • 1 cup heavy cream or 1/2 cup cream cheese
  • ½ tsp xanthan gum optional


  • Hit “saute” to preheat your instant pot. Add butter, chopped onion, garlic, and sea salt. Saute for 3-4 minutes or until the onion is translucent.
  • Pour in the chicken broth and add nutmeg and broccoli florets. Cover and cook on manual, high-pressure mode, for 3 minutes.
  • When time ends, hit “cancel” and use the quick pressure release. Take the lid off and pour in heavy cream.
  • Stir in cheddar. Add it in batches, stirring constantly until cheese is melted and everything is incorporated.
  • If you like the soup to be much thicker, use xanthan gum. Whisk xanthan gum with 3 tablespoons of warm water, broth or a little bit of soup until well blended. Add the mixture to the pot and stir the soup.
  • Serve broccoli cheese soup in a bowl garnished with some more shredded cheddar.



*You can use an electric hand mixer to blend the soup for extra creaminess. If you want to make this a complete meal, simply add some chicken (chopped chicken breast or ground chicken) and saute it with onion and butter in the beginning. This will give you a complete macros for your meal.


Nutrition Facts
Keto Instant Pot Broccoli Cheddar Soup
Amount Per Serving
Calories 416 Calories from Fat 324
% Daily Value*
Fat 36g55%
Saturated Fat 22g110%
Cholesterol 114mg38%
Sodium 1322mg55%
Potassium 412mg12%
Carbohydrates 8g3%
Fiber 2g8%
Sugar 2g2%
Protein 17g34%
Vitamin A 1516IU30%
Vitamin C 56mg68%
Calcium 471mg47%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet.
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Why is my cheese clumping in broccoli cheddar soup?

Cheese may clump in broccoli cheddar soup if it’s added too quickly, the soup is too hot, or the cheese isn’t shredded finely enough. To prevent clumping, gradually add cheese to a slightly cooled soup and stir constantly, using a low heat to encourage even melting.

Why did my broccoli cheese soup break?

Broccoli cheese soup can break or curdle if the heat is too high when adding the cheese, causing the proteins to separate from the fats. To prevent this, ensure the soup is not boiling and add the cheese slowly, stirring constantly, and use a low heat to melt the cheese smoothly.

What is the best cheese to melt in soup?

The best cheeses for melting in soup are those with a creamy texture and good meltability, such as cheddar, American, Gruyère, fontina, Monterey Jack, and Brie. These cheeses blend well into soups, creating a smooth and rich consistency.

How do you thicken broccoli cheese soup on keto?

To thicken broccoli cheese soup on a keto diet, you can use xanthan gum, guar gum, or cream cheese, which are low in carbs and create a creamy texture. If you want to, you can puree a portion of the soup to add body without adding thickeners.

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