You’ll love how creamy Instant Pot cauliflower potato soup is, with fewer carbs than a traditional creamy potato soup but oh, so delicious! With easy vegetarian option.
Why you’ll love it: This is a nutritious soup that feels really decadent, creamy and delicious.
How long it takes: 45 minutes
Equipment you’ll need: Instant Pot pressure cooker
Servings: makes 7 cups
The silky texture of this pureed cauliflower potato soup makes it seem like you’re enjoying an ultra-rich splurge. It tastes like a creamy potato bisque, laden with heavy cream and cheese. You’ll be pleasantly surprised when you find that there isn’t a bit of heavy cream or butter in the ingredient list, and only a mere half cup of shredded cheese. The taste is there but not all the fat.
And to make it even better, cauliflower replaces a good share of the potatoes to lessen the carb load. Cauliflower is low in carbs, super nutritious, and very popular right now. Cauliflower rice is a popular low carb choice and can be used in lots of tasty ways, from side dishes to pizza crust.
Even if you aren’t a fan of cauliflower, and I know there are a few of you out there, you’ll be pleasantly surprised by this creamy potato soup. Quite honestly, it’s hard to discern the presence of cauliflower at all. It’s kind of a sneaky way to get your vegetables.
About this recipe
Like most Instant Pot recipes, this soup comes together pretty quickly. Everything is cooked right in the Instant Pot in thirty minutes, start to finish. Allow yourself fifteen minutes to clean and chop the cauliflower, potatoes, and onions, and you can have a delicious creamy soup on the table, complete with a lovely garnish of bacon crumbles, shredded cheddar cheese, and sliced green onions in only 45 minutes!
I’ll run through the recipe here to get you started. You’ll find the printable recipe card near the end of the post. It has complete instructions, measurements, and nutrition information.
Ingredients you’ll need
- Cauliflower: Good news! Both frozen and fresh work in this recipe. Use whatever you have on hand. Don’t worry if the cauliflower is still frozen because it doesn’t matter a bit (yay!). Just dump the frozen cauliflower out of the bag and into the pot.
- Yukon Gold Potatoes: We recommend sticking with Yukon gold potatoes for the creamiest, silky soup. There’s no need to peel them first; just give them a quick scrub.
- Flavor: We keep things pretty simple in this soup, all you need are onion, salt, pepper, and garlic powder.
- Liquids: The base of this soup is a combination of chicken stock and milk. We always recommend using unsalted or low-salt chicken stock so that you can control the salt levels yourself. For a vegetarian soup, use vegetable broth (and leave out the bacon).
- Cheddar Cheese: We recommend stirring some in so it can melt and flavor the soup, and then reserving some for sprinkling on top of your bowl of soup.
- Garnishes! Aren’t garnishes and toppings always the most fun part? For this soup, we recommend crumbled bacon, more cheese, and sliced green onions or chopped parsley, for garnish. Fresh chives would be terrific, too, if you don’t have green onions.
How To Make Cauliflower Potato Soup
Sauté the bacon. The process of making this soup begins with a quick sauté of the bacon garnish. Don’t you just love the Sauté feature of the Instant Pot? So handy! Reserve the bacon, and use the drippings to sauté the onion next.
Add the rest of the ingredients to the pressure cooker (except the cheese), and set the pressure for ten minutes. The pressure cooker will take about ten minutes to come to pressure, so you have twenty minutes of hands-off cooking.
Release the pressure. When the timer goes off, quick release the pressure. Don’t be alarmed if your soup doesn’t look so great yet. It all comes together once it’s blended.
Purée the soup. Use a hand held blender to purée the soup. An alternative is to carefully transfer it to a blender to process. If you aren’t quite ready to serve the soup, keep it perfectly warm for up to an hour on the “Keep Warm” setting of your Instant Pot.
Add seasonings and cheese. Stir in the garlic powder, salt, and pepper, and some of the cheese and enjoy with your desired toppings!
Make It Your Own
- Vegetarian option: Omit the bacon, and sauté the onion in a tablespoon of olive oil instead. Substitute vegetable broth for the chicken broth.
- Experiment with toppings. Fresh chopped parsley, french-fried onions, homemade croutons, or fried sage leaves perfectly garnish this soup.
- Try a different cheese. Sharp cheddar cheese can be replaced with another type of cheese. Use a cheese with plenty of flavor and that melts well, such as a sharp fontina, Gruyère, or Swiss.
- Not a fan of cauliflower? This five ingredient crockpot pumpkin soup is somewhat similar to this recipe but without any cauliflower. Or go in a different direction with smoky roasted tomato soup or creamy carrot soup.
Storage & Reheating Tips
Refrigerate: Leftover creamy cauliflower potato soup is fantastic and makes a great lunch. Store leftovers in a tightly covered container in the fridge for up to 4 days. We don’t recommend freezing this soup.
Reheat: Individual portions can be reheated in the microwave at 50% power until hot. Larger amounts can be reheated in a saucepan on the stovetop over low heat.
Interested in a weekly meal plan (it’s free!) that includes this cauliflower soup recipe? Take a look at my Meal Plan #36. You’ll find a wholesome recipe for each weekday plus a categorized grocery list. Let me do the planning for you this week!
We’ll be adding a new meal plan weekly. If you’re interested, browse all of our meal plans.
More Instant Pot Soup Recipes
Soup’s on! And it’s on the table in a lot less time if you use your Instant Pot! Try:
- Instant Pot Broccoli Cheese Soup
- Instant Pot Black Bean Soup (no need to soak beans!)
- Instant Pot Chicken Noodle Soup
- Instant Pot Tomato Soup
- Instant Pot Chicken and Rice Soup
- Instant Pot Minestrone Soup Recipe
- Instant Pot Chicken and Dumplings
- Instant Pot White Chicken Chili
- Instant Pot Spicy Peanut Soup with sweet potatoes and kale by Pinch of Yum
- 3 strips bacon, cut into ½ inch pieces
- ¾ cup coarsely chopped onion (about ½ onion)
- 3 large Yukon gold potatoes, cut into 1” cubes (see note)
- 1 bag (16 ounces) frozen cauliflower florets, or fresh cauliflower, cut into florets
- 2 cups low-sodium chicken stock
- 1 cup 2% milk
- 1 ½ teaspoons salt
- ½ teaspoon garlic powder
- Freshly ground pepper, to taste
- ½ cup shredded cheddar cheese, plus more for garnish
- Chopped fresh parsley or sliced green onions for garnish
- Heat Instant Pot using the Sauté function. Add the bacon and cook, stirring occasionally, until crisp, about 5 minutes. Remove the bacon and set it on a paper towel to drain. Reserve bacon pieces for garnish.
- Add onion to the pot and sauté, stirring occasionally, until it becomes soft and translucent, about 3 minutes. Stir in 1 cup broth and scrape the bottom of the pot to deglaze, removing all browned bits. Turn off Instant Pot.
- Add potatoes, cauliflower, remaining chicken stock, milk, salt, pepper, and garlic powder. Attach lid and securely seal, making sure valve is in “sealing” position. Switch the Instant Pot to the Pressure Cook — High Pressure setting. Set the timer for 10 minutes. It will take about 10 minutes to come to pressure.
- When the Instant Pot finishes cooking, quick release the pressure manually.
- Use an immersion blender to blend the soup to the desired consistency, or transfer it in batches to a blender to puree. Taste and add additional salt, pepper, or garlic powder, if desired.
- Stir in cheddar cheese until melted. Garnish with reserved bacon, additional cheese, parsley or green onion.
- Keep soup warm for up to 1 hour using the “keep warm” setting on the Instant Pot. Makes about 7 cups.
- Vegetarian option: omit the bacon, and use 1 tablespoon of olive oil to sauté the onion. Substitute vegetable broth for the chicken broth.
- Yukon gold potatoes make the creamiest soup– we don’t recommend substituting russet or red potatoes.
- More garnish ideas: Fresh chopped parsley, French-fried onions, homemade croutons, or fried sage leaves perfectly garnish this soup.
- Sharp cheddar cheese can be replaced with another type of cheese. Use a cheese with plenty of flavor and that melts well, such as a sharp fontina, Gruyère, or Swiss.
This website provides approximate nutrition information for convenience and as a courtesy only. Nutrition data is gathered primarily from the USDA Food Composition Database, whenever available, or otherwise other online calculators.