Keto Instant Pot Broccoli Cheddar Soup Recipe

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The Best Keto Instant Pot Broccoli Cheddar Soup Recipe – this low carb keto soup is creamy, rich, and full of cheesy bacon and broccoli flavor!

spoon scooping broccoli cheddar soup over instant pot picture

If you love deliciously cheesy broccoli cheddar soup, you’re going to love this recipe.

We’ve tweaked one of our favorite soups to be quick and easy – it goes from fridge to table in 20 minutes – but also completely keto!

If you are strictly monitoring carbs, please read recipe notes carefully to omit carrots and reduce onion.

Don’t skip our section about how to thicken keto soups in the tips – it can make a big difference too your soups texture!

If you aren’t counting carbs, be sure to find my notes about adding cornstarch to thicken soup.

Just Take Me to the Best Keto Instant Pot Broccoli Cheddar Soup Recipe!

We have a lot of loyal readers on Sweet C’s who are still becoming comfortable in the kitchen and learning to make great meals for themselves who have asked for more information with the recipe.

I am providing lots of tips and tricks to better serve my readers – but if you’d like to skip that please click the “skip to recipe” button in the top left corner, or scroll to the bottom of the page.

bowl with broccoli cheddar soup next to instant pot picture

Fresh or Frozen Broccoli for Soup

This recipe can work with either frozen or fresh broccoli crowns – even still frozen!

If you prefer a toothier, crunchier broccoli in your soup, opt for fresh broccoli.

If you prefer softer broccoli, use frozen broccoli crowns.

I personally prefer to NOT thaw frozen broccoli crowns before adding to the pot since it helps them from overcooking to the point of mushiness.

picture of instant pot and bowl with broccoli cheddar soup and bread

How to Thicken Keto Soups

Keto soups can be a bit thinner since they don’t usually involve a roux or cornstarch – but using these tricks you can thicken up your soup without carbs.

Keto Roux Ingredients

  • 3/4 cup butter
  • 2 tbsp xantham gum

How to Make a Keto Roux

  • While soup is coming to pressure and cooking, prepare keto roux.
  • Melt butter in a small nonstick pot on medium heat.
  • Using a whisk, stir in one teaspoon xantham gum, whisking to quickly incorporate.
  • After xantham gum is incorporated in butter, whisk in second teaspoon.
  • Whisk to smooth, heat until color is very soft brown, and remove from heat.
  • Perform a quick release on the instant pot.
  • Once complete, remove the lid and pour in the cornstarch mixture.
  • Whisk well to combine.
  • Continue on with recipe below.

Cornstarch to Thicken

Using cornstarch is pretty universally panned in keto cooking – but I do know a few people who follow a looser keto diet who will use gluten free quick thickening cornstarch to thicken soups.

I personally like to use a quick-thickening modified cornstarch I found at a food expo – no mixing with cold water needed.

Its gluten and GMO free and family owned (this company hasn’t asked me to say this in any way- I just love how this modified cornstarch works more easily for soups.)

If you have regular cornstarch on hand, you can use a water mix to easily add it in.

How to Thicken Broccoli Cheddar Soup with Cornstarch

  1. While soup is coming to pressure and cooking, start mixing cornstarch.
  2. In a small bowl, whisk ¼ cup of cornstarch with ¼ cup cold water. 
  3. Perform a quick release on the instant pot.
  4. Once complete, remove the lid and pour in the cornstarch mixture.
  5. Whisk well to combine.
  6. Continue on with recipe below.
spoon with broccoli cheddar soup next to an instant pot picture

How To Make Instant Pot Broccoli Cheddar Soup

This recipe relies on browning vegetables and frying bacon to add tons of extra flavor – without carbs – so we will use the sauté function quite a bit before bringing the soup to pressure.

While you might be tempted to skip each step, it really pulls out so much more flavor and a less gummy texture.

Don’t rush the steps – pressure cooking takes off tons of time for this dish, but you need to develop the flavor!

  1. Prepare ingredients.
  2. Dice onion, bacon, and carrots and mince garlic. Cut broccoli into ½” pieces.
  3. Set aside 1 cup of broccoli. 
  4. Set instant pot to sauté mode.
  5. Add butter, onions, and bacon and sauté 4 minutes.
  6. Add garlic and cook until fragrant (about 30 seconds).
  7. Turn off the instant pot.
  8. Add chicken broth and scrape the bottom of the instant pot to deglaze.
  9. Then, add broccoli and carrots. Seal and set on manual high pressure for 1 minute. 
  10. In a small bowl, whisk ¼ cup of cornstarch with ¼ cup cold water. 
  11. Perform a quick release on the instant pot. Once complete, remove the lid and pour in the cornstarch mixture.
  12. Stir well to combine.
  13. Set instant pot to sauté mode.
  14. Add half and half, garlic, dill, pepper, and salt.
  15. Stir to combine and bring to a boil.
  16. Once boiling, add cheese and stir until melted (about 1 minute)
  17. Add remaining 1 cup of broccoli.
  18. Cook for 2 minutes.
  19. Top with cheese and serve with your favorite bread.
  20. Enjoy!

How to Store Broccoli Cheddar Soup

This keto broccoli cheddar soup is one of our favorites to make because it stores beautifully – and can even be frozen!

You can whip up a big batch of this soup to have leftovers you’ll want to eat again and again – and they taste even more amazing when reheating!

How to Reheat

Reheating this instant pot broccoli cheddar soup from the refrigerator or the freezer is a snap – and unlike many recipes, tastes great from the microwave as well as the stovetop.

From frozen:

Let soup thaw fully before reheating – simply place in the refrigerator overnight to thaw.

From the refrigerator:

Add soup to pan on stovetop, or in instant pot on sautee, and heat on medium high until lightly boiling.

If soup reduces too much, add a couple tablespoons bone broth to thin soup.

ladle holding broccoli cheddar soup over instant pot

What to Serve With Broccoli Cheddar Soup

Broccoli cheddar soup is awesome alongside roasted meats, with low carb or regular bread, vegetables, or a side salad!

If you’re watching carbs, my keto naan is a great side roll – and if low carb isn’t a concern, try this delicious no knead bread!

I’m linking my favorite dishes to serve with this soup below:

What to serve with broccoli cheddar soup

Keto Instant Pot Broccoli Cheddar Soup Recipe

If you love this easy instant pot broccoli and cheddar soup as much as I do, please give it a five star rating – just click the stars in the recipe below – and help me share on facebook and pinterest!

soup ladle with broccoli cheese soup over an instant pot picture

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Instant pot keto broccoli cheddar soup.

Keto Instant Pot Broccoli Cheddar Soup Recipe

Yield: 8
Prep Time: 5 minutes
Cook Time: 20 minutes
Total Time: 25 minutes
Delicious and easy keto instant pot broccoli cheddar soup is low carb but tastes just like your favorite cheesy soup the whole family loves!

Ingredients

  • ¼ cup butter
  • 1/2 white onion (diced)
  • 5 strips bacon, diced
  • 3 cloves garlic (minced)
  • 1 cup carrots (diced - omit if strictly limiting carbs)
  • 4 cups broccoli (2 broccoli crowns)
  • 4 cups chicken broth
  • ¼ cup cold water
  • 2 cups heavy cream
  • 1 tsp garlic powder
  • 1 tbsp dill
  • 2 tsp pepper
  • 1 tsp salt
  • 10 oz grated cheddar cheese

Instructions

  1. Prepare ingredients.
  2. Dice onion, bacon, and carrots and mince garlic.
  3. Cut broccoli into ½” pieces.
  4. Set aside 1 cup of broccoli. 
  5. Set instant pot to sauté mode.
  6. Add butter, onions, and diced bacon and sauté 4 minutes.
  7. Add garlic and cook until fragrant (about 30 seconds).
  8. Turn off the instant pot.
  9. Add chicken broth and scrape the bottom of the instant pot to deglaze.
  10. Then, add broccoli and carrots.
  11. Seal and set on manual high pressure for 1 minute. 
  12. Prepare cornstarch thickener or keto roux.
  13. Perform a quick release on the instant pot.
  14. Once complete, remove the lid and pour in the keto roux or cornstarch mixture.
  15. Stir well to combine.
  16. Set instant pot to sauté mode.
  17. Add half and half, garlic, dill, pepper, and salt.
  18. Stir to combine and bring to a boil.
  19. Once boiling, add cheese and stir until melted (about 1 minute) add remaining 1 cup of broccoli.
  20. Cook for 2 minutes.
  21. Top with cheese and serve.
  22. Enjoy!

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Nutrition Information
Yield 8 Serving Size 1
Amount Per Serving Calories 492Total Fat 43gSaturated Fat 25gTrans Fat 1gUnsaturated Fat 14gCholesterol 130mgSodium 1258mgCarbohydrates 12gFiber 3gSugar 5gProtein 16g

Nutrition is automatically calculated by Nutritionix - please verify all nutrition information independently and consult with a doctor or nutritionist for any and all medical and diet advice.

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About Courtney

Courtney loves to share great wine, good food, and loves to explore far flung places- all while masting an everyday elegant and easy style at lifestyle blog Sweet C’s Designs. Sweet C's devoted to finding the best food and drinks you'll want to make or find, around the world!

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