Creamy Roasted Cauliflower Soup

This 10-ingredient creamy roasted cauliflower soup is a healthy weeknight dinner! Vegan and nut-free, its creaminess comes from the cauliflower itself.

Creamy Roasted Cauliflower Soup

Waaaay back at the beginning of this blog, I posted this Cauliflower & Leek Soup that is still one of our most popular recipes. I used cashews to make it creamy without actual cream, but since then I’ve realized that blended cauliflower can become SO creamy and delicious all by itself. Sometimes less is more, and I love the pure simple flavor of this new all-vegetable roasted cauliflower soup.

I start by roasting the whole cauliflower – florets, cores, greens and all. Waste not want not! I also roast shallots and garlic before blending it all with a bit of miso, Dijon mustard, lemon juice, and thyme for flavor. As always, the soup tastes better the second day, so it’s a perfect make-ahead meal. This one is sure to be on our rotation all winter long.

Happy roasted cauliflower soup-ing!

Creamy Roasted Cauliflower Soup

4.9 from 19 reviews
Creamy Roasted Cauliflower Soup
 
This 10-ingredient creamy roasted cauliflower soup is an easy, healthy weeknight dinner! Vegan, gluten-free, and nut-free, the creaminess comes from the cauliflower itself.
Author:
Recipe type: Soup
Serves: 4
Ingredients
  • 1 medium head cauliflower (about 2 lbs.)
  • 2 shallots, peeled and sliced into quarters
  • 4 unpeeled garlic cloves
  • 4 cups (32 ounces) vegetable broth
  • Leaves from 5 fresh thyme sprigs
  • ½ tablespoon white miso paste
  • ½ tablespoon Dijon mustard
  • 3 tablespoons extra-virgin olive oil
  • 2 tablespoons fresh lemon juice
  • Sea salt and freshly ground black pepper
Instructions
  1. Preheat the oven to 400°F and line a large baking sheet with parchment paper.
  2. Trim the cauliflower head into florets and cut the core into pieces. Spread the cauliflower and the shallots on the baking sheet and toss with a drizzle of olive oil and pinches of salt and pepper.
  3. Wrap the garlic cloves, along with a drizzle of olive oil and a pinch of salt, in a piece of aluminum foil and place it on the baking sheet with the vegetables. (The garlic will roast this way making it soft and the flavor less strong).
  4. Roast for 30 to 35 minutes or until the cauliflower is browned around the edges. Remove from the oven and let cool slightly. Set aside 1½ cups of the smaller cauliflower florets for garnish.
  5. In a blender, combine the roasted cauliflower, shallots, peeled garlic, vegetable broth, thyme leaves, miso paste and Dijon mustard and blend until smooth.
  6. Add the olive oil, lemon juice and a pinch of salt and pepper and blend. Taste and adjust seasonings adding more salt, pepper and lemon juice. If the soup is too thick, add water, a few tablespoons at a time and blend to desired consistency.
  7. Serve with a drizzle of olive oil and the reserved cauliflower florets.
  8. Note: the soup will thicken as it sits. If you’re reheating the soup, stir in a bit more water for a thinner consistency, if desired.

 

52 comments

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  1. Cauliflower is such an amazing vegetable… I love how it can be used in so many ways! 🙂 Cheers, Jeanine!

  2. annie from kitchenwindowclovers.com
    01.04.2017

    This soup looks so simple and lovely. Just the thing to cut through the winter chill.

  3. suzi
    01.04.2017

    wow. this is the most delicious cauliflower soup I have ever made/had!! so incredibly savory and so rich, yet nothing in it to make it “fattening” or over the top. The flavors are balanced perfectly. this one will be my “go to” from now on. YUM!! sprinkled of red pepper flakes on top of my bowl before I devoured it, moaning the whole time. so embarrassing, right?

    • Beth Ann Fischberg
      01.04.2017

      suzi, nice idea about the pepper flakes.

    • Jeanine Donofrio
      01.05.2017

      Hi Suzi, I’m so glad you loved it!!

  4. Beth Ann Fischberg
    01.04.2017

    Fantastic for a chilly night! Store didn’t have thyme, didn’t miss it. I confess I did add a touch of cashew cream! So flavorful and super easy. Thank you, made my day! 😊 Sorry, for some reason computer would not let me leave 5 stars.

    • Jeanine Donofrio
      01.05.2017

      Yay, I’m so glad you loved it!

  5. This looks delicious! I’m stockpiling healthy soup recipes to keep us going through the coldest months here in Boston and I’m adding this one immediately. The last (and only) time I made a cauliflower soup, it somehow ended up being pretty…dare I say…chunky. I didn’t have the best blender, and I’ve got a better one now – so hopefully that doesn’t happen again!

  6. Avani
    01.09.2017

    Such a great recipe and was such a hit for dinner last night with my husband. I added a little cayenne. We really enjoyed how it was a guilt-free creamy soup. A quick question – is the mustard flavor supposed to be pronounced? I feel like maybe I put too much in but I balanced it out by adjusting the other spices. Also, I felt like I didn’t have as much reserve cauliflower (1.5 cups) to set aside or it’d have been less for blending so I didn’t put too much to the side for garnish.

  7. Martha Kiley
    01.09.2017

    Is the miso necessary? I can’t find it locally. Should I put in something else ?

    • Jeanine Donofrio
      01.09.2017

      You can skip it but miso is very salty so you might want to season more aggressively with salt and pepper. Coriander, cumin and/or smoked paprika all go well with cauliflower if you are looking to add more flavor after you taste it. Hope that helps!

  8. Peter
    01.25.2017

    Taste wise, i’m in haven !

    Trying to replicate the creaminess, but falling short, even after minutes of blending i get mushy, fibrousy texture, not even close to creamy …
    Any ideas ?

    • Jeanine Donofrio
      01.25.2017

      Hi Peter, you can try adding a bit more broth (or water) if the consistency is too thick.

      • Jeanine Donofrio
        01.25.2017

        Oh, and a bit more olive oil to help it become less fibrous…

      • Peter Flachbart
        01.25.2017

        Jeaninethanks for the suggestions
        forgot to mention that, the color wasn’t as dark as in pictures,

        so 2nd batch I tried to bake further, then I boiled in the broth ….
        And sure enough, what it all needed was more time cooking

        • Jeanine Donofrio
          01.25.2017

          I’m so glad to hear that it worked out for you!

  9. Anya from stuffnfings.com
    01.26.2017

    I am looking forward to trying this one! Thanks for sharing x

  10. Kylie Patrick
    01.28.2017

    Just made this soup. Delicious and so easy!

    • Jeanine Donofrio
      01.28.2017

      yay, so happy to hear that!

  11. Claire
    03.06.2017

    Delicious! Added the suggested red pepper flakes and the four garlic cloves used were extra large. Great flavor and very creamy.

  12. Cressie
    03.11.2017

    Any recipe for making the vegetable broth? I really struggle to buy that where I life so a basic recipe would be great!

    • Laura
      02.16.2018

      Some people save vegfies scraps in a 1 gallon freezer zip bag- ends of celery onions mushroom stems carrot peels and when the bag is full, simmer in water with bay leaf and some herbs/garlic for an hour. Strain. Freeze again if not using it all up.

  13. really have to commend you on the creativity here with cauliflower, really interesting balance of flavors too with miso paste, dijon, garlic, etc., thank you for this recipe!

  14. JCB from Wordpress
    10.20.2017

    Can’t have oil. Has anyone made it without oil? Otherwise, sounds delicious.

  15. Melissa from savoredgrace.com
    10.27.2017

    Wow, I just made this and it tastes perfectly like cauliflower, but also rich and creamy. Can’t wait to serve it for dinner!

    • Jeanine Donofrio
      10.28.2017

      I’m so glad to hear that!! I hope you enjoyed it for dinner 🙂

  16. Jan
    11.24.2017

    Made this today, and it was delicious! The creamy taste, without cream, was a nice treat. Thanks for another tasty recipe.

  17. Andrea
    02.03.2018

    I just made this and plan to serve it tonight for a friend’s birthday dinner. It’s delicious. Thank you for not using cream! I love the miso and mustard additions! Question: do you have a recommendation for a good commercial broth or do you just make your own? Today I used a mix of water, aquafaba, a tsp of Better Than Bouillon along with the miso and it turned out well.

    • Jeanine Donofrio
      02.03.2018

      Hi Andrea, I’m so glad you like the soup! I like Whole Foods’ 365 vegetable broth best – the regular kind, not low sodium.

      • Andrea
        02.05.2018

        Oh great. Haven’t tried it but I will! Thanks again for the luscious recipe.

  18. Holly
    02.17.2018

    Ok, my soup is fiberous too and more chunky then creamy. Your recipe called to roast the stem and leaves, I was supposed that to add to soup correct? Not sure where I went wrong, it’s for a dinner party tomorrow and getting worried I can’t serve it if I can’t fix it

    • Holly
      02.19.2018

      Ok, I fixed it with time, and more blending with water and oil, as you suggested in another post. Added a swirl of truffle oil and pine nuts for garnish, and a dash of crushed red pepper on top which were nice compliments. Some suggested adding cayenne, I wouln’t, it takes away from the flavor of thyme.

      • Jeanine Donofrio
        02.19.2018

        Hi Holly, I’m so glad you were able to get it to work. Apologies for not seeing your previous comment earlier!

        • Megan
          03.30.2018

          Did you blend the core with the florets? Thanks!

  19. Julie
    04.15.2018

    Hi! I dont have shallots, could I substitute with onions?thank you!

  20. Geetha
    04.29.2018

    Loved the unusual combination of flavours. Skipped the onions, added fresh rosemary which I added to the cauliflowers at the last 5 minutes of roasting. Instead of broth, I added almond milk. The whole pan was finished in no time.
    Definitely a keeper.

  21. Jennifer
    05.05.2018

    Hi there, I’d love to make this soup but trying to plan/prep ahead for the week – do you think it would work if I pre roasted the cauliflower, then froze it or alternatively, made up the whole recipe and freeze the soup? I know adding cream or anything diary and freezing it would change the consistency on reheating.

    • Jeanine Donofrio
      05.06.2018

      Hi Jennifer – I’m pretty sure this will freeze well since there is no dairy (or dairy alternatives like cashews which also don’t freeze well). I’ve always had great success freezing all-vegetable soups.

      Alternatively, this will keep well in the fridge for up to about 4 days, so it’s a great thing to make in advance and eat all week.

      hope this helps!

  22. Luca Fritzsche
    06.12.2018

    Jeanine, Thanks for the recipe, it’s delicious!

  23. Aimee
    11.07.2018

    I’ve used this recipe at least a half a dozen times and it never fails to be a hit. I usually just add my roasted veggies straight to a soup pot and blend everything up with my immersion blender before I bring it to a simmer to warm it back up. It’s perfect for a weeknight dinner on a chilly day.

  24. Cassie
    12.04.2018

    Made this soup for supper today.. It was fantastic! Thank you so much.

  25. Stephanie
    12.14.2018

    This is delicious! Bringing it to a friend’s for shabbat dinner tonight! Thanks!

  26. MairaNutrition
    01.02.2019

    Wow, I just made this and it tastes perfectly like cauliflower, but also rich and creamy. Can’t wait to serve it for dinner!

  27. Allie
    01.06.2019

    Wow, another winner of a soup recipe! So good. Could not find miso paste for the life of me, but it still tastes good with just salt!! I made some breadcrumbs as a garnish for the top.

  28. Susan
    06.19.2019

    This is the best cauliflower soup ever! It reminds me of a soup I ate in Iceland and haven’t been able to replicate . I think it’s the miso that adds a special touch.

    • Jeanine Donofrio
      06.22.2019

      Hi Susan, I’m so glad you loved it!!

  29. Jade
    06.26.2019

    I added a potato, omitted the garlic and shallots and thyme (had none in the house) and drank the soup before I remembered the lemon. Still so delicious!! I also boiled the cauliflower for a few minutes after roasting to make it easier to blend. Thank you for this recipe.

    • Jeanine Donofrio
      07.10.2019

      Ooh that sounds so yummy!

A food blog with fresh, zesty recipes.
Photograph of Jeanine Donofrio and Jack Mathews in their kitchen

Hello, we're Jeanine and Jack.

We love to eat, travel, cook, and eat some more! We create & photograph vegetarian recipes from our home in Chicago, while our shiba pups eat the kale stems that fall on the kitchen floor.