Creamy Instant Pot Cauliflower Soup

Instant Pot cauliflower soup is a creamy and delicious low carb meal our whole family loves! Easy to throw together with fresh or frozen cauliflower, this is one of our favorite keto vegetable Ninja Foodi soup recipes you’ll make again and again.

Ninja Foodi Cauliflower Soup

Yes you can make this even if you have a Mealthy, Crockpot Express or a Ninja Foodi. Any pressure cooker that is electric will do. Just use our basic recipe below and add as many add ins as you like. Potatoes make this thicker and add more flavor but you could double up on the other and omit these too if you’d rather.

Especially during the cold snowy days we love Instant Pot soup recipes. With a side of rolls they are a complete meal for sure and you can even add leftover meat into it if you like. They’re customizable and everyone in the family is sure to love this one.

Instant Pot Cauliflower Soup Recipe

Making this after Easter time or Christmas? You might have meat you want to use up too. You can easily make this as a leftover ham recipe too, we love that. Just dice it fine and throw it in at the beginning if you want the flavors to sort of marinate together or at the end.

If it is a different time of year but you would still like a bit of protein in there. This is how to cook ham hocks in it too! If you are using these I would put them on a trivet with a cup of broth underneath and high pressure cook them for 10 minutes first. Then drain the water and add them in with the first step listed below.

We have cooked this white veggie all different kinds of ways. I have loved cauliflower steak air fryer style for a long time. Now it was time to cream it like this.

First you’ll want to prepare your main veggie. As with any head of cauliflower you’ll want to remove the leaves and cut down the end where it was attached to the plant. We have no use for that…but it’s great for your compost bin. Remember that the larger your pieces are the more firm they will remain.

Not firm in the fact that you won’t be able to blend and make smooth if you chose to but if you did want to leave a little bit of chunks for added texture, larger would be best. For super smooth cut smaller than what you see here so they really break down and you can almost drink it after using a blender.

What potatoes go well with cauliflower?

As for the potatoes you can use any type you prefer. We used russets here but every one comes with a different flavor and texture. Red would work well too, they will just be a bit firmer. Yukons are softer, white in color and a bit less starchy than dark brown varieties but very similar.

Broth comes down to preference too. Any of the 3 would be fine but we used chicken broth. If making vegetarian cauliflower soup you could substitute this for vegetable broth or even water. With the latter you would want to add more salt and pepper since that won’t come with any flavor really whatsoever.

Stock or broth will have a lot more flavor so I recommend using that. I feel like you could make this gluten free easily too. 

Ingredients

• You are going to cut your whole head of cauliflower into large bite size pieces. In this way it doesn’t take nearly as long as making whole pressure cooker cauliflower without being sliced.
• Potatoes should be cut into large chunks, I use russets for flavor and to thicken
• Heavy cream is better than milk to thicken
• Sour cream is best but plain Greek yogurt is another alternative
• Broth is better than water to add flavor
• Cheese should be shredded, sharp cheddar cheese is great
• Onions can be diced in there, green onions are optional
• Chiles, canned add just a bit of heat
• Seasonings like salt and pepper are a given

Can you make soup with frozen cauliflower?

Yes, just like our air fryer frozen cauliflower directions there really isn’t a difference in the cook time. Especially under high pressure you can use bagged right out of the freezer instead and follow the same directions below.

How Long Does it Take to Cook Pressure Cooker Cauliflower Soup?

Since we’re using a pressure cooker this will only take 5 minutes to cook! Of course it takes a few minutes to pressurize but once it does your dinner will be done in no time. The heavy cream and sour cream will go in after that step. You don’t want to add those in at the very beginning or else there’s a chance of it curdling. We don’t want that!

We’ve also made a whole head this time and when making our Instant Pot cauliflower mash which has been a hit too. If I can find purple or orange colored that turns out fun. You could use different colors in this soup if you wanted. There isn’t a change in flavor at all.

How to Make Instant Pot Cauliflower Potato Soup

• Total time to make this is under 30 minutes which is a major win. It’s like a thick and creamy potato soup with the addition of cauliflower. It really is quite yummy.
• First you will add your diced potatoes, cauliflower, onions, broth, seasonings and butter into your Instant Pot.
• Close lid and steam valve and set to high pressure for 5 minutes.
• Do a quick release. In a small bowl whisk together the heavy cream, sour cream and cornstarch until smooth.
• Pour this into your soup, press the saute button.
• Allow to bubble and thicken the soup. Add your cans of chiles and cheese now.
• Stir until well blended and thickens to your liking. Turn pot off/cancel. 
• Serve with garlic refrigerated biscuit pull apart bread
• If you desire a smoother soup use an emersion blender to blend and smooth soup more.

If you wanted to really jazz it up you could add some bacon bits or better yet saute some diced bacon in your pot first with olive oil. Don’t drain the bacon fat, leave that in there for added flavor!! OH YUM. If you wanted to make this on the stove top it wouldn’t be much different.

How do you make soup smooth?

If you want puree the soup you can use an immersion blender but I don’t bother myself with that step. Just depends on what your desired consistency is.

How do you thicken cauliflower soup?

Fist of all if you add potatoes that is a natural thickener. Then when you add the sour cream and heavy cream mixture in step 3 it it will continue to thicken. In other cases if I still wasn’t happy with the texture I would whisk 1 tbsp cornstarch with water, set to saute to bubble and stir that in. I don’t think that is necessary but another option.

For slow cooker cheesy cauliflower you can follow these directions, you can also make mashed cauliflower on the stovetop by just mashing after tender under high pressure.