Instant Pot Cauliflower Broccoli Soup Recipe

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A creamy vegetable soup made with fresh cauliflower and broccoli is a delicious and easy Instant Pot soup recipe to make.

A bowl of creamy cauliflower and broccoli soup.

Packed full of fresh cauliflower, broccoli and carrots this recipe is perfect for lunch or dinner. The recipe is easy to make and seasoned with simple ingredients.

Ingredients you'll need to make this recipe

You can find the ingredient amounts in the recipe card below.

fresh vegetables: fresh broccoli florets, medium head of cauliflower, carrots.
seasonings: garlic, dried bay leaf salt, pepper, cooking wine.
soup broth: low sodium chicken broth or vegetable broth if making a vegetarian version.
soup thickeners: half and half, whipping cream or milk, cornstarch and water.

Step by step recipe directions

Follow the easy step by step recipe directions below to make this recipe.

Step 1: Rinse the vegetables under cold running water.

Step 2: Prep the fresh vegetables by trimming and cutting the cauliflower and broccoli into florets. Peel, trim and slice the carrots.

Put the prepped broccoli, cauliflower and sliced carrots into the metal insert of the Instant Pot.

Broccoli, cauliflower and carrots in the instant pot insert.

Step 3: Add the garlic, salt, pepper, and bay leaf to the Instant Pot.

Adding the soup seasonings to the vegetables.

Step 4: Pour the the vegetable or chicken stock into the instant pot.

Step 5: Secure the lid on the Instant Pot and make sure the valve is in the sealing position.

Step 6: Press the manual button and set the pressure cooking time for 5 minutes.

Step 7: Once the Instant Pot has finished pressure cooking allow the steam to naturally release for 15 minutes.

After fifteen minutes push the valve to the releasing position and allow the steam to escaped.

Step 8: Carefully open the Instant Pot lid allowing the steam to billow out away from your face and hands. Push the off button then push the sauté button.

Pressure cooked soup before thickening in the Instant Pot.

Step 9: Add the milk, half and half or heavy whipping cream to the soup in the Instant Pot.

Step 10: Mix the cornstarch with the cold water in a small bowl until dissolved and add the slurry to the Instant Pot. Stir to combine.
As the soup heats and begins to simmer it will begin to thicken.

Thickened creamed vegetable soup inside the Instant Pot insert.

Once the soup has thickened press the off button and unplug the Instant Pot.

Serve immediately.

FAQS about this recipe

How do you thicken cauliflower soup?

Adding a slurry of cornstarch and water will thicken cauliflower soup without changing the flavor.

How do you fix bland cauliflower soup?

You can fix the bland flavor of cauliflower soup by adding herbs and spices. Adding garlic, bay leaf, salt and pepper to cauliflower soup as you cook it is a great way to add flavor.

Expert Recipe Tips

Time savers: Buy pre-cut cauliflower, broccoli and carrots to save time.
Creaminess: Whipping cream makes the creamiest of soup while whole milk will yield a thinner soup broth.
Freezable: Makes great freezer meal lunch or dinners. Freeze in individual 16 oz. food grade containers. Allow the soup to cool to room temperature before transferring to freezer containers.
Extra creamy soup: for a chunk free creamy soup use a slick blender to blend the vegetables into small pieces. If you have to use a blender you will have to do it in batches because all of the soup will not fit in the blender at once.

More cauliflower recipes you'll love

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Want to try some of my other Instant Pot recipes? You can find them on my Instant Pot Recipe page.

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