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Home » Recipes » Dinner Recipes » Loaded Instant Pot Cauliflower Soup

Loaded Instant Pot Cauliflower Soup

Published: Nov 22, 2021 · Modified: Oct 27, 2022 by Lynn Polito · This post may contain affiliate links. As an Amazon Associate, I earn a small commission from qualifying purchases.

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Ready in 30 minutes, this Instant Pot Cauliflower Soup tastes just like a loaded baked potato soup, but with a fraction of the carbs! Top this soup with bacon, cheddar cheese, and scallions for a satisfying and delicious dinner!

A straight on view of the soup with bread and cheese in the background

Cauliflower is one of the best vegetables, in my opinion! It's so versatile. What other vegetable can be a pizza crust, a side dish, or a soup?

The Instant Pot makes the most delicious soups! You get that long, slow cooked flavor in a fraction of the time. Here are some of my favorite Instant Pot soup recipes:

  • Simple Instant Pot Split Pea Soup
  • Instant Pot Zuppa Toscana
  • Lasagna Soup- In The Instant Pot!
  • Creamy Instant Pot Chicken Tortilla Soup
  • Hearty Instant Pot Minestrone Soup
  • Instant Pot Chicken and Rice Soup
  • Cozy Instant Pot Ham and Potato Soup
Jump to:
  • Ingredients You'll Need
  • Equipment
  • How To Cut A Cauliflower
  • Let's Make Loaded Instant Pot Cauliflower Soup!
  • What To Top Instant Pot Cauliflower Soup With
  • Tips and Tricks
  • Frequently Asked Questions
  • Other Recipes To Try
  • 📖 Recipe

Ingredients You'll Need

An overhead view of the ingredients for the Instant Pot Cauliflower Soup
  • Cauliflower- one large head, or two small. It should come out to 5 cups of cauliflower florets.
  • Chicken broth- Low sodium is best is you can find it. You can also use vegetable broth instead.
  • Cheese- Shredded sharp cheddar, white cheddar, Colby Jack, or your favorite type of shredded cheese.
  • Parmesan- To add a little more salt and flavor to the soup.
  • Dry Mustard- Add a depth of flavor and brings out the flavor of the cheese in the soup.
  • Milk- Whole milk, 2%, or 1% would all be great in this soup.
A spoon is lifting the soup out of the bowl

Equipment

  • Instant Pot
  • Immersion Blender
  • Cutting Board
  • Knives
  • Measuring Cups
  • Ladle

How To Cut A Cauliflower

When you are first looking at a cauliflower it can be very intimidating. To wash and clean a cauliflower, first wash it under cold water. Remove the outside leaves that may still be on the cauliflower from harvesting.

With a sharp knife, cut the cauliflower in half. You will see the core on the inside of the cauliflower where it grows on the plant. Cut a triangle into the cauliflower to remove the core and discard the core.

Take the remaining head of the cauliflower and cut it into florets. Florets are a small piece of cauliflower with a little bit of the stem still on it. Add all those florets to a bowl and set it aside.

An overhead view of a bowl of Instant Pot Cauliflower soup

Let's Make Loaded Instant Pot Cauliflower Soup!

Clean and trim the cauliflower and cut the cauliflower into florets. Set the florets aside in a bowl.

Cut and chop the onions and garlic. Add one tablespoon of olive oil into the bottom of the Instant Pot. Add the chopped onion and minced garlic to the oil. Set the Instant Pot to "saute" mode and saute for 3 minutes, until the onions start to soften. Add the cauliflower florets, chicken broth, and dry mustard to the Instant Pot. Cancel "saute" mode, close the lid of the Instant Pot, and set the Instant Pot to "High" pressure for 15 minutes.

The onions and garlic are being sauted in the Instant Pot with the olive oil
The onion and garlic are being sauted
Broth is being poured into the Instant Pot over the cauliflower
The broth is being added to the cauliflower

After 15 minutes, quick release the pressure from the Instant Pot. Be very careful when doing this step as the chicken broth can come out the steam valve and the chicken broth is very hot.

With an immersion blender, blend the soup until it is a creamy, velvety consistency. Turn the Instant Pot back to "Saute" and add the milk and cheeses. Mix the soup until the cheese is melted. Serve immediately.

An immersion blender is blending the cooked cauliflower
Blend the soup
The parmesan and cheddar is added to the Instant Pot Cauliflower Soup
Add the cheese
The soup is ready to be served
Stir to melt the cheese

What To Top Instant Pot Cauliflower Soup With

  • Crispy Bacon Bits
  • Chopped Scallions
  • Sour Cream
  • Shredded Cheddar Cheese
  • Chives
  • Chopped Onions
  • Roasted cauliflower
  • Jalapenos
  • Hot Sauce

Tips and Tricks

  • Serve this soup with sourdough bread or sourdough bread rolls. The bread will soak up the soup and it's always fun to dip!
  • If you don't have an immersion blender, ladle the soup into a blender or a Vitamix and blend until the soup is the consistency you are happy with. You can't over blend this soup.
  • You can make this soup half broccoli and half cauliflower! Just add use half the amount cauliflower and substitute broccoli for the other half.
  • Taste the soup after you add the cheese. Cheese tends to have a high salt content, so you don't want to add too much salt to the soup and overpower it.
A spoon is in the bowl of Instant Pot cauliflower soup

Frequently Asked Questions

Can you freeze this soup?

Yes! To freeze this soup, make sure it has completely cooled down. Ladle the soup into an airtight container and label the date in which you are putting the soup in the freezer. It will stay good for up to 4 months in the freezer.

How do you reheat this soup?

To reheat this soup, simply place it in a microwave safe mug and place it in the microwave for 2-3 minutes. To reheat it on the stove, add the amount of soup you would like in a saucepan and gently reheat on medium heat. Serve immediately.

How do I make Instant Pot Cauliflower Soup thicker?

This is a velvety soup, but if you would like to make it thicker, reduce the amount of broth you use by 1 cup. You can also add a can of drained cannellini beans to the cauliflower and that will thicken the soup significantly.

Can I use frozen cauliflower?

Definitely! And the best part, you don't even need to defrost it! Add the bag of cauliflower to the Instant Pot when you would add the fresh cauliflower.

A spoon is in the bowl of instant pot cauliflower soup and the soup is surrounded by bread, scallions, and cheddar cheese.

Other Recipes To Try

Did you love this Loaded Instant Pot Cauliflower Soup? I'd so appreciate it if you would give this recipe a 5-star review! That will help other hungry readers find my recipes!

And don't forget to tag me on Instagram or Facebook and share this recipe on Pinterest! Thanks for sharing this journey with me and enjoy these delicious recipes!

More Instant Pot Recipes

  • Sweet and Spicy Cranberry Dip
  • Roasted Broccoli and Cauliflower Soup
  • Crispy Brussel Sprouts with Bacon and Parmesan
  • Cornbread with Kefir

📖 Recipe

A straight on view of the soup with bread and cheese in the background

Loaded Instant Pot Cauliflower Soup

Ready in 30 minutes, this Instant Pot Cauliflower Soup tastes just like a loaded baked potato soup, but without all the carbs! Top this soup with bacon, cheddar cheese, and scallions for a satisfying and delicious dinner!
5 from 1 vote
Print Pin Rate
Course: Soup
Cuisine: American
Prep Time: 5 minutes minutes
Cook Time: 15 minutes minutes
Servings: 5 Servings
Calories: 348kcal
Author: Lynn Polito

Equipment

  • Instant Pot

Ingredients

  • 1 tablespoon Olive Oil
  • 1 large Onion Chopped
  • 3 Garlic Cloves Minced
  • 5 cups Cauliflower 1 large head
  • 1 teaspoon Dry Mustard
  • 4 cups Chicken Broth Low Sodium if possible
  • 1 cup Milk Whole milk, 2%, or 1%
  • 2 cups Cheddar Cheese Shredded
  • ½ cup Parmesan Cheese Grated
  • Salt and Pepper To Taste

Instructions

  • Wash and trim the cauliflower head. Cut the head into florets. Set that aside in a bowl.
  • Set the Instant Pot to "saute". Add the olive oil, chopped onions, and minced garlic to the Instant Pot. Saute for 3 minutes until the onions start to soften.
  • Add the cauliflower florets, chicken broth, dry mustard, and chicken broth to the Instant Pot. Cancel "saute" mode, close the lid, set the Instant Pot to "High" pressure for 15 minutes.
  • After 15 minutes, carefully quick release the pressure. Be careful as chicken broth might come out the top.
  • Open the lid and with an immersion blender, blend the soup to your desired consistency.
  • Set the Instant Pot back to "saute". Add the cheeses and milk and stir to combine and to melt the cheese, about 2 minutes. Serve immediately.

Notes

  • Frozen cauliflower can be used instead of fresh cauliflower at a 1 to 1 ratio.
  • To make this even more decadent, substitute heavy cream or half and half for the milk.
  • If you don't have an immersion blender, carefully ladle the soup into a large blender and blend until the soup is the desired consistency. 
  • Top this soup with bacon, scallions, more cheddar, and sour cream.

Nutrition

Calories: 348kcal | Carbohydrates: 14g | Protein: 23g | Fat: 24g | Saturated Fat: 13g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 8g | Cholesterol: 59mg | Sodium: 550mg | Potassium: 633mg | Fiber: 3g | Sugar: 6g | Vitamin A: 611IU | Vitamin C: 51mg | Calcium: 540mg | Iron: 1mg
Tried this Recipe? Tag me Today!Mention @LynnsWayofLife or tag #lynnswayoflife!

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Hey there! I'm Lynn and I'm based just outside of Boston. I'm a wife and mom of two with a passion for cooking and creating homemade food for my family.

Whether it's creating new recipes, or exploring tried and true classics, I am constantly trying to show that homemade doesn't have to be hard

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