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Home » Recipes » Soups

Creamy Roasted Cauliflower Soup 

By Laura Fuentes Updated Aug 21, 2024

5 from 24 votes

Recipe

This post may contain affiliate links. Read our disclosure policy here.

Get cozy with a bowl of this creamy roasted cauliflower soup. It's the most luxurious way to enjoy cauliflower and is so simple to make!

This flavorful roasted cauliflower soup delivers all the comfort food feels you need on a cold day. With a few simple ingredients, you get a dreamy weeknight meal!

Overhead photo of roasted cauliflower soup topped with cauliflower florets

Easy, Creamy Cauliflower Soup

The trick to this creamy soup flavor and texture is found in roasting cauliflower, garlic, and onion; it helps them develop a caramelized, bronzed flavor you can’t get from steaming.

When blended with a little cream, the tender florets emulsify into one smooth, creamy, and velvety soup.

Is Cauliflower Soup Bland?

This roasted cauliflower soup is anything but bland. Each spoonful coats your tongue with savory elements of roasted veggies, toasty seasonings, and the richness of a little cream.

Ingredients

You need nothing but simple ingredients to enjoy a bowl of homemade roasted cauliflower soup. Measurements are in the recipe card, but first, take a look at the ingredient list:

  • Garlic: roasted with cauliflower and adds So. Much. Flavor. 
  • Cauliflower: the star ingredient for this deliciously creamy soup. 
  • Olive oil: prevents the veggies from sticking to the pan. 
  • Seasonings: salt, black pepper, a little cumin, and bay leaf.  
  • Onion: browned with olive oil to add savory flavor and aroma. 
  • Vegetable broth: the liquid base for this soup. 
  • Half and half: to make the soup creamier. You can also use heavy cream or canned coconut milk -or skip it all together.

Roasted Cauliflower Soup with Coconut Milk

If you’d like to make this a dairy-free soup, swap the half-and-half for canned coconut milk. It has a rich consistency similar to its dairy alternatives, and since it’s only ½ cup, it won’t give your soup any weird flavor.

two bowls of cauliflower soup topped with roasted cauliflower florets

How to Make Creamy Roasted Cauliflower Soup

Let’s get to the good part, where we get to make this cozy roasted cauliflower soup happen! Following is an overview of the steps and a video so you can get a visual of how to make this soup:

  1. Prep 
    Peel the garlic, chop the cauliflower into florets, and dice the onion. 
  2. Roast
    Toss the cauliflower and garlic onto a baking sheet, drizzle some oil, and season. Roast for 30 minutes or until fork tender and golden brown.
  3. Simmer
    In a large soup pot or Dutch oven, sauté the onion. Stir in the broth and bay leaf and bring to a simmer. 
  4. Blend
    Add the cauliflower and garlic and simmer for 10 minutes before removing from heat and blending the soup with an immersion blender or smaller batches with a traditional blender. *Make sure you remove the bay leaf before blending! 
  5. Serve
    Ladle the soup into bowls and serve! You’ll find some delicious side dish ideas at the end of this post.

Watch this creamy goodness come together in this recipe video!

How to Blend Soup Without an Immersion Blender

Don’t have an immersion blender? No problem! Use a regular blender filled no more than ¾ of the way up and blend until smooth.

If your blender has a top in the middle of the lid, open it up to vent the steam.

Make sure to do this in batches and transfer the smooth soup into a separate large pot while you repeat the process.

How to Thicken Cauliflower Soup

If your soup is on the thin side, you can easily fix this by whisking 1 tablespoon of cornstarch with ¼ cup of cold water. As it cooks, the starch will thicken the consistency of the soup.

How to Freeze Roasted Cauliflower Soup

Freezing leftover soup is an option and easy to do; transfer the lukewarm soup into an airtight container or freezer bag and freeze it for up to 3 months. 

When ready to eat, defrost the soup in the refrigerator overnight or in a water bath. Reheat on the stovetop or microwave, and you’re ready to eat.

Cauliflower Soup Toppings

Aside from the roasted cauliflower florets, there are half a dozen ways to give your bowl of soup a show-stopping presentation: 

  • Red chili pepper flakes
  • Sour cream
  • Homemade Bacon Bits
  • Fresh dill
  • Fresh chives
  • Grated cheese

What to Serve with Roasted Cauliflower Soup

Wondering if I had some yummy additions to serve with this soup? You better believe I do! Try my Cheese Twists or Easy Popovers if you want something warm and soft to soak up every last drop. 

Craving something crisp and green? This Simple Side Salad is perfect in every way, but so is Lemon Roasted Asparagus!

For a low-carb option, dunking my Almond Flour Biscuits into the rich broth is a good idea. Roasted Pesto Salmon would also be a mouthwatering addition and turn this into a high-protein meal you’ll crave on repeat.

Creamy Roasted Cauliflower Soup 

large bowl of cauliflower soup topped with roasted cauliflower florets
Servings: 4
Prep Time: 5 minutes mins
Cook Time: 45 minutes mins
Get cozy with a bowl of this creamy roasted cauliflower soup. It’s the most luxurious way to enjoy cauliflower and is so simple to make!
5 from 24 votes
Print Pin

Watch how it’s made:

Ingredients

  • 3 cloves garlic, peeled
  • 1 large head or 2 small heads of cauliflower, washed and cut into florets
  • 3 tablespoons olive oil, divided
  • ½ teaspoon salt
  • ¼ teaspoon black pepper
  • ½ teaspoon cumin
  • 1 medium white onion, diced
  • 1 leaf bay
  • 4 cups vegetable broth, about 32oz
  • ¼ cup half-and-half, heavy cream, or coconut milk

Instructions

Prep:

  • Preheat the oven to 400F. Line a large baking sheet with parchment paper.

Roast the cauliflower:

  • Add the garlic and cauliflower to the baking sheet, drizzle with 2 tablespoons of olive oil, and season with salt, black pepper, and cumin.
  • Roast the cauliflower for 30 minutes or until fork tender and golden brown. Remove the baking sheet from the oven and set aside.

Cook the soup:

  • Heat the remaining oil in a large Dutch-oven or soup pot over medium-high heat. Add the onion and cook until tender, about 3 minutes.
  • Stir in the broth and bay leaf, bring to a simmer, then add the cauliflower and garlic. Bring to a boil, then reduce the heat, and simmer for 10 minutes.

Make it creamy:

  • Turn off the heat, and carefully remove the bay leaf. Use an immersion blender to pureé the soup, or use a regular blender and blend the soup in smaller batches. Return the smooth soup to the pot.

Serve:

  • Ladle the soup into bowls and enjoy.

Notes

Use a regular blender filled no more than ¾ of the way up and blend until smooth. If your blender has a top in the middle of the lid, open it up to vent the steam. Make sure to do this in batches and transfer the smooth soup into a separate large pot while you repeat the process.

Equipment

tablet and phone with meatless meal plan recipes on the screens
Meatless Meal Plan
intermittent fasting ebook displaying on a tablet and a phone screen
Intermittent Fasting eBook
red dinosaur shaped soup ladle
Nessie Soup Ladle
two sets of maroon souper cubes with white lids
Freezer Soup Cubes

Nutrition

Serving: 1 bowl | Calories: 168kcal | Carbohydrates: 15g | Protein: 5g | Fat: 11g | Saturated Fat: 2g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 8g | Cholesterol: 1mg | Sodium: 351mg | Potassium: 516mg | Fiber: 4g | Sugar: 6g | Vitamin A: 12IU | Vitamin C: 72mg | Calcium: 60mg | Iron: 1mg

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Comments

    5 from 24 votes (20 ratings without comment)

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    Recipe Rating




  1. Holley says

    June 26, 2024 at 3:47 pm

    5 stars
    This is one of my go-to soup recipes! It’s so flavorful and comforting!

    Reply
  2. DK says

    June 26, 2024 at 3:18 pm

    5 stars
    This cauliflower soup is so creamy and delicious! I especially love the addition of the roasted cauliflower!

    Reply
  3. chara says

    June 26, 2024 at 2:41 pm

    5 stars
    Love this recipe, my family loves it too! I love it! thank you

    Reply
  4. Dina and Bruce says

    June 26, 2024 at 2:27 pm

    5 stars
    Loved the cumin in this dish!! So tasty!

    Reply

Hi! I'm Laura.
Certified Integrative Nutrition Health Coach, mom of three, and the woman behind the world’s best pancakes—here to help you ditch the mealtime drama with recipes your family will actually eat.

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