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“Fantastic,” as described by a reader, this slow cooker cauliflower soup has nearly no prep time and is naturally creamy and vegan, thanks to cauliflower and cashews! We love to top it with crispy spiced chickpeas to amp up the protein (and deliciousness).

Pairs well with Air Fryer Brussels Sprouts (with hot honey, yum!) and Sweet Potato Gnocchi.

Cauliflower soup with chickpeas in a big bowl.
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Is there anything cauliflower can’t become? This velvety smooth cauliflower soup tastes like a creamy potato soup (but with fewer carbs). Unlike in my roasted cauliflower soup where caramelized edges bring big flavor, we’re cooking this one low and slow in the slow cooker.

The long cooking time means the veggies become tender, and flavors blend perfectly, making for the most delicious (and hands-off) dinner!

Reader rating

★★★★★

“Honestly I was skeptical. I really thought as simple as this recipe was, that it would be bland. But it was delicious, I wouldn’t change anything. ” —Sara

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Cauliflower soup with chickpeas in a slow cooker.

the creamy secret

Now, you can make a pretty good cauliflower soup with cauliflower alone, but cashews make it really good. Cashews make this slow cooker cauliflower soup feel full and creamy (while keeping the recipe totally plant-based!)

Ingredients needed to make slow cooker cauliflower soup.
Cauliflower soup with chickpeas in a big bowl.

Freezer Meal Prep

This soup is amazing as a freezer meal prep dinner! Add all of the soup ingredients to a freezer-safe bag and store frozen for up to 3 months. When ready to enjoy, add it all to a slow cooker with vegetable broth and cook (starting at Step 1 of the recipe).

Slow cooker cauliflower soup in a freezer bag.

P.S. If you loved this recipe, try my Vegan Corn Chowder or Broccoli Soup With Cashews next! Or for another creamy option, try this Cauliflower Leek Soup!

Slow Cooker Vegan Cauliflower Soup (With Cashews)

4.71 from 100 ratings
Prep: 5 minutes
Cook: 3 hours
Total: 3 hours 5 minutes
Servings: 4 servings (about 2 cups each)
This slow cooker cauliflower soup is naturally creamy, vegan, and low-prep—made with cauliflower and cashews, and topped with crispy spiced chickpeas for extra protein and crunch.

Ingredients 

Cauliflower Soup

  • 1 medium head cauliflower, cut into florets
  • ½ medium yellow onion, chopped
  • 1 cup cashews, 125 g
  • 4 cups vegetable broth, 1 L
  • ½ tsp salt

Crispy Chickpeas

  • 1 15-oz can chickpeas, drained and patted dry, 425 g
  • 1 Tbsp olive oil, 15 mL
  • 1 tsp smoked paprika
  • ½ tsp cumin
  • ¼ tsp salt
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Instructions 

Cauliflower Soup

  • Cook: Roughly chop cauliflower and onion. Add to slow cooker along with cashews and broth. Submerge the cauliflower and cashews under the broth as much as possible, then cover and cook until cauliflower is tender (high for 3 to 4 hours, low for 6 to 8).
    Ingredients for cauliflower soup in a slow cooker.
  • Blend: When cauliflower is tender, puree the mixture until smooth using either a handheld immersion blender or by carefully transferring to a countertop blender.
    Blending cauliflower soup.

Chickpea Topping

  • Preheat oven to 400°F (204°C). Toss chickpeas with oil. Spread onto a baking sheet and bake for 20 minutes, or until crispy. While still hot, toss chickpeas with spices and salt. Serve warm over the soup.
    Crispy roasted chickpeas on a spatula.

Notes

Storage: Any leftover soup can be stored in the refrigerator in an airtight container for up to 5 days. You can also store it in the freezer for up to 3 months. Just let the hot soup cool completely before storing.
Stovetop: To cook this on the stove, let it simmer, covered, for 30 to 45 minutes, or until cauliflower is fork-tender.

Nutrition

Serving: 1serving | Calories: 393kcal | Carbohydrates: 38.7g | Protein: 15.1g | Fat: 21.7g | Saturated Fat: 4.1g | Cholesterol: 0mg | Sodium: 1307mg | Potassium: 761mg | Fiber: 7.5g | Sugar: 5.1g | Calcium: 60mg | Iron: 4.3mg

Nutrition information calculated by Sarah Bond, degreed nutritionist.

did you make this?Leave a comment below and tag @liveeatlearn on social media! I love seeing what you’ve made!

Soup, Salad, and sandwich!

No matter what you’re feeling, we’ve got recipe pairing options to make this cozy soup a full meal.

  • The Best Avocado Sandwich: This gem is ready in just 15 minutes, and its cool filling is a nice contrast to the warm cauliflower soup.
  • Naan Bread: With cauliflower soup being so thick, naan bread is perfect for dipping in it.
  • Vegetarian Caesar Salad: I just love a good Caesar salad and soup moment, and this one delivers!
Eat vegetarian cookbook.

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4.71 from 100 votes (29 ratings without comment)

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219 Comments

  1. Carmen solis says:

    Would you be more clear in your recipe please.
    What kind of cashew is use for this soup. Raw or roasted..

    1. Sarah says:

      Hi Carmen, all recipes use raw ingredients unless otherwise specified 🙂

  2. Brooke Savastano says:

    5 stars
    The soup was amazing! We put it in the bullet because we done have a handheld blender. The only thing we thought it lacked was some spices which wasn’t a big deal. We added some nutritional yeast and our homemade vegan Parm (made of cashews, nutritional yeast, garlic powder, and salt). All in all 10/10 would recommend to a friend (or serve to some of my non vegan family members and not tell them it’s vegan until after they taste and love it) thank you for this great recipe 🙂

    1. Sarah says:

      Haha, I also love serving to unsuspecting non-vegans without telling them, sneaky sneaky! Love the addition of nutritional yeast, I’ll have to try that next time 😀

  3. Jill Petigara says:

    5 stars
    Delicious soup! I made it according to recipe but used 4 cups of broth bc I had a large head of cauliflower. Added all season salt and garlic powder to add a bit more flavor. It’s delish!

    1. Sarah says:

      So happy to hear, Jill! Enjoy! 😀

  4. KB says:

    In the crockpot right now, can’t wait to try it!

    Question: does the nutrition information include the chickpea topping or is it just for the soup alone?? Thanks!!

    1. Sarah says:

      Yum, enjoy!! The nutritional info contains the chickpeas as well 😀

  5. Erica Rosen-mcginnis says:

    4 stars
    This soup turned out so delicious!! I added about 3 cloves of minced garlic to the crockpot contents.
    After I blended the contents, I also added some turmeric, black pepper, and Trader Joe’s Traditional Tunisian Harissa paste! I will absolutely make this again!

    1. Sarah says:

      So happy to hear it, Erica! Sounds delish with the harissa! 😀

  6. sharon says:

    Hi Why is this recipe so high in sodium?
    Sharon

    1. Sarah says:

      The vegetable broth and salt – you can use low sodium veggie broth and reduce the amount of salt, just adding it to suit your taste 😀

  7. Ashleigh G says:

    5 stars
    Could I use almonds instead of cashews?

    1. Sarah says:

      That would probably work, though I don’t think the texture will end up quite as creamy. Would love to hear how it goes if you try it out! 😀

  8. Maria Neufeld says:

    2 stars
    I really wanted to like this recipe because it’s so simple, but ended up having to add some spice to the soup (smoked paprika, cayenne pepper, garlic powder). My kids ate it without complaining but didn’t ask for seconds. My husband said he would have liked it better without the chickpeas.

  9. ERIN says:

    I’m new to the slow cooker game, so this may be a silly question. But do the cashews need to soak overnight before being put into the crockpot. Or does the long length of the cooking time make this step one that isn’t necessary? Thank you.

    1. Sarah says:

      No need to soak them! The long cooking time will make them soft.

  10. Lynn Reznick says:

    Cauliflower soup has been one of my favorite foods and one of the very few foods I would eat as a child. My mother made it it with cauliflower, salt, pepper, butter or margarine (non-dairy) and cream of wheat for thickness. These days I add a little bit of shredded or spiralized carrots and sometimes some diced zucchini for color and nutrition. And I use cream of rice since I discovered I’m gluten intolerant. Almond milk for creaminess. Protein nut milk is even richer—real cream has too much fat and calories.