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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. Stephanie Padilla says:

    Can I use cashew milk instead of cashew? I don’t have an blender..

    1. Sarah Bond says:

      It might just not be quite as thick! The blended cashews help to thicken this up and give it that creamy texture.

  2. Loved this cauliflower soup! says:

    5 stars
    This was so easy and sooo delicious Definitely a keeper!!

    1. Sarah Bond says:

      I’m so happy to hear you loved it! 😀

  3. Jackie C says:

    4 stars
    First, I HATE CAULIFLOWER!!!!! But I’m trying to change my opinion of it. So a 4 star cauliflower recipe for me is AMAZING. The real star of this recipe for me was the crunchy chick peas!!! Yum!!! The soup base was pretty good. I felt like it needed a little something else. Maybe garlic??? Thanks, Sarah for changing my mind about cauliflower 🙂 I’m going to try your knock off chickfila sandwich next

    1. Sarah Bond says:

      So happy I could change your mind! 😀

    2. LAURA B says:

      How much is in 1 serving size? 1 cup?

    3. Sarah Bond says:

      Each serving has about 2 cups of soup 🙂

  4. Mb says:

    Have you made it in an instant pot? I’m sure it would work, I just don’t know how many minutes it would take in there

    1. Sarah Bond says:

      I haven’t tested this one in an instant pot so I can’t say for sure what the times would be. Sorry about that!

    2. Brian says:

      Does your Instant Pot have a slow cook function?

    3. Erika says:

      I saw a similar recipe that said to saute onion and garlic. Add everything and pressure cook for 3 minutes then natural release for 10. The blend. Going to try that.

  5. Stacey Simek-Dreher says:

    5 stars
    So creamy and tasty! Perfect for a 10 degree outside, cozy lunch inside day.

    1. Sarah Bond says:

      So happy to hear that you loved it, Stacey! Enjoy!!

    2. Sherrie Monaco says:

      4 stars
      Made this soup tonight but it’s kind of watery. Any ideas how I can thicken it up?

    3. Sarah Bond says:

      After blending, you can let it simmer (either in the slow cooker or on the stove) with the lid off to allow steam to evaporate out! 🙂

  6. Jennifer Johnston says:

    5 stars
    It is easy and delicious!!!!

  7. Hope Stevenson Stevenson says:

    Raw or roasted cashews?

    1. Sarah Bond says:

      I’ve tested with both and either work! 🙂

  8. Gayle says:

    5 stars
    Soooo quick and easy on the stovetop. I’ve made it twice and it’s a hit with my ‘cauliflower hating’ husband. This one is a keeper! Yummy 😋 😋 😋 😋

  9. Doreen Haddad says:

    HI Sarah
    Can we replace the fresh cauliflower with frozen cauliflower?

    1. Sarah Bond says:

      Yes! I’d do about 5 to 6 cups of florets.

  10. Sherine zaky says:

    Can I use broccoli instead of cauliflower

    1. Sarah Bond says:

      I haven’t tested this recipe with broccoli so I can’t say for sure!