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    Home » Gluten-Free Recipes » Gluten-Free One-Pot Meals » Creamy Basil Cauliflower Soup

    Creamy Basil Cauliflower Soup

    Apr 13, 2013 · by Valentina · 15 Comments

    This post may contain affiliate links.

    Jump to Recipe

    Basil Cauliflower Soup is a comforting bowl of hearty vegetables and aromatic herbs and spices. This soup is both vegan and gluten-free, and while it's warming enough to be perfect for a cool winter night, it's also not too heavy for the warmer months.

    Roasted Cauliflower Basil Soup in a bowl with a cream-colored rim and a piece or roasted cauliflower and a basil leaf on top

    I love creating soups that are good fits for all seasons.

    This Basil Cauliflower Soup would certainly warm you up on a cold winter night, but it's brightened greatly with fresh basil, also making it a nice fit in the spring and summer.

    Really, no matter the season, it's a delicious, rich, flavorful and comforting bowl of soup.

    Who wouldn't want that any day?

    One large cauliflower heat with a black background.

    What You'll Need


    • olive oil - I like this one.
    • cauliflower - Choose cauliflower heads that are very firm and tightly closed, without any brown areas.
    • Yukon Gold potatoes - Look for potatoes that are firm, smooth and free of sprouts.
    • onion - Onions should be firm, heavy for their size and without bruises.
    • garlic - Choose heads of garlic that do not have any green shoots, which would indicate they're old. They should also be firm and without dark spots.
    • vegetable stock - Preferably low to no sodium.
    • basil - Look for perky bunches and avoid any brown, bruised or yellow leaves. If you can, get bunches with smaller leaves -- they're more tender.
    • nutmeg
    • salt - I always cook (and bake) with Kosher salt. It’s coarse and salts foods in a subtle way that enhances their flavors without making them taste salty.
    • black pepper - Freshly ground if possible.

    fresh bunch of basil on wooden surface
    How to Make Basil Cauliflower Soup


    - Preheat the oven to 500°F. (The very high heat is crucial in making this so delicious!)

    - Pour ¼ cup of the olive oil onto a rimmed-baking sheet and set aside.

    - Trim the greens and the root off of the cauliflower and cut it into approximately half-inch slices, placing them on the oil-coated sheet pan as you go. 
Flip the cauliflower pieces over so both sides are coated with the olive oil, and sprinkle them with salt and pepper.

    sheet pan of roasted cauliflower pieces for Roasted Cauliflower Basil Soup Recipe

    - Place the pan in the oven and roast until the bottoms of the cauliflower pieces are very brown, about 15 minutes. Flip them over and sprinkle this side with salt and pepper. Then brown this side as well.


    - While the cauliflower is roasting, coat the bottom of a large soup pot with olive oil and place it over medium-high heat.

    - Add the onion and garlic and cook until the onion is soft, about 5 minutes. Add the potato and cook for another couple of minutes. Then add the roasted cauliflower, along with any oil from the baking sheet.

    - Pour in the vegetable stock and bring to a boil. Then turn the heat to low, cover and simmer for 20 minutes.

    - Add the basil leaves and nutmeg and mix them in.

    - Turn the heat off and use an immersion blender or standing blender to purée the soup until it's smooth. (It will be relatively thick and creamy when it's done.)

    - Season with salt and pepper to taste. (Here's how.)

    (More detailed instructions are in the recipe card below.)

    Recipe Tips and Substitutions


    • To save time you can buy a bag (or bags) of pre-cut cauliflower. Take a good look through the bag if possible to be sure there aren't dark spots on the florets.
    • I love the creaminess of Yukon Gold potatoes, but you can also use Russetts or white potatoes.
    • The final color of your basil cauliflower soup might vary, depending on the richness of the stock you use.

    Creamy Vegan Soups


    The cooking technique to achieve a creamy vegan soup is quite simple, and it can be done with almost all vegetables you choose to use in a puréed soup, similar to this one.

    The secret: potato!

    When soups are puréed with a touch of potato, they can become incredibly rich and creamy. (Not to mention, dreamy!)

    I think you'd be hard pressed to find anyone who tastes it, who wouldn't think there was cream in it. And I think that's pretty impressive for a vegan soup.

    (Here are a few additional ways to thicken soups -- for all diets.)

    Other Creamy Vegan Soups

    • Creamy Jalapeño Soup with Cauliflower
    • Carrot Coconut Soup
    • Creamy Mushroom-Rosemary Soup
    • Cream of Asparagus Soup
    • Potato Chestnut Soup Recipe
    • Parsnip Soup

    Enjoy every last, delicious spoonful of this Basil Cauliflower Soup.

    cauliflower basil soup in cream rimmed bowl with basil leaves

    Basil Cauliflower Soup Recipe

    Valentina K. Wein
    Basil Cauliflower Soup is a comforting bowl of hearty vegetables and aromatic herbs and spices. This roasted soup is both vegan and gluten-free, and while it's warming enough to be perfect for a cool winter night, it's also not too heavy for the warmer months.
    5 from 2 votes
    Print
    Prep Time 30 minutes mins
    Cook Time 50 minutes mins
    Total Time 1 hour hr 20 minutes mins
    Course Soup, First Course
    Cuisine American
    Servings 4 to 6
    Calories 364 kcal

    Equipment

    • blender
    • immersion blender

    Ingredients
     
     

    • 5 tablespoons olive oil
    • 3¼ pounds whole cauliflower
    • 1 cup yellow onion, roughly chopped
    • 2 teaspoons minced garlic
    • ¾ cup Yukon Gold potato, peeled, roughly chopped
    • 2 cups packed basil leaves, washed and dried
    • ½ teaspoon ground nutmeg
    • 5 cups vegetable stock
    • salt and freshly ground black pepper to taste

    Instructions
     

    • Set oven and prep pan. Preheat the oven to 500°F. (The very high heat is crucial in making this so delicious!) Add about 4 tablespoons of the olive oil on a baking sheet and set aside.
    • Prep cauliflower. Trim the greens and the root off of the cauliflower and clean it with a damp paper towel. Then cut it into approximately ½-inch slices, placing them on the oil-coated baking sheet as you go. (You won’t have perfect slices, because many of the florets will break into pieces.)
      Flip the cauliflower pieces over so both sides are coated with the olive oil. Then, generously sprinkle with salt and pepper.
    • Roast. Roast in the preheated 500°F oven until the underside of the cauliflower is very brown, about 15 minutes. Use metal kitchen tongs to flip the pieces over and sprinkle this side with salt and pepper. Then brown this side as well, about 10 more minutes.
    • Sauté the ingredients. While the cauliflower is roasting, coat the bottom of a large soup pot with the 1 tablespoon of olive oil and place it over medium-high heat.
      Add the onion and garlic and cook until the onion is soft, about 5 minutes. Add the potato and cook for another couple of minutes. Then add the roasted cauliflower, along with any remaining oil from the baking sheet.
    • Add stock and cook. Pour the vegetable stock over all of the ingredients and bring to a boil. Turn the heat to low, cover and simmer for 20 minutes. (The potatoes should be very tender when it's done.) Add the basil leaves and nutmeg and mix them in.
    • Blend, season and serve. Turn the heat off and use an immersion blender or standing blender to puree the soup until it's smooth. (It will be relatively thick and creamy when it's done.) Season with salt and pepper to taste. (Here's how.)

    NOTES

    The final color of your soup might vary, depending on the richness of the stock you use.
    Calorie count is only an estimate.

    NUTRITION

    Calories: 364kcal
    Keywords fall and winter soups, creamy vegan soups
    Have you tried this recipe?I'd love to see it on Instagram! Tag me at @cookingontheweekends or leave a comment & rating below.

    Cooking On The Weekends is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.

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    Reader Interactions

    Comments

    1. Cathy @ She Paused 4 Thought

      April 13, 2013 at 8:32 pm

      Since it is snowing in half the country right now, this soup is perfect timing! Soup is comforting no matter what time of year and your soup looks so inviting. I will be buying cauliflower at the farmer's market tomorrow to make this.

      Reply
    2. Rob

      April 14, 2013 at 5:02 pm

      About how much basil should be used?

      Reply
      • valentina

        April 14, 2013 at 7:08 pm

        Hi Rob, thank you so much for asking, as I somehow left it out of the ingredient list!
        I've edited the recipe to include it now, thanks to you.
        It's 2 cups packed basil leaves (about 2 average sized bunches). Hope you enjoy the soup! 🙂

        Reply
    3. David

      April 15, 2013 at 1:53 pm

      Valentina - this soup looks amazing both from the ingredient stand point and your beautiful photo. And it looks so rich, when it is really very light and healthy!

      Reply
      • valentina

        April 16, 2013 at 8:07 pm

        Thanks so much, David! That's exactly what I was hoping for -- rich and creamy, but still healthy. 😀

        Reply
    4. Kushi

      January 09, 2018 at 12:30 pm

      Such a delicious and flavorful combo. Loved it.

      Reply
      • valentina

        January 09, 2018 at 3:56 pm

        Thanks so much!

        Reply
    5. Kristi

      January 09, 2018 at 1:29 pm

      The roasted cauliflower alone sounds good, I would have a hard to making that and having enough left for the actual soup. It all sounds like a great meal for a winter day.

      Reply
      • valentina

        January 09, 2018 at 3:56 pm

        Thanks, Kristi. I've actually had that happen to me! 🙂

        Reply
    6. Helen of Fuss Free Flavours

      January 09, 2018 at 4:10 pm

      5 stars
      Roasting cauliflower gives such a fabulous flavour. Together with the other ingredients, makes for a very tasty and hearty bowl of goodness.

      Reply
    7. Patty @ Spoonabilities

      January 09, 2018 at 4:55 pm

      5 stars
      I love cauliflower and make cream of cauliflower soup all the time! Roasting and using basil sounds sooooo good! Love this!

      Reply
      • valentina

        January 09, 2018 at 9:29 pm

        Thanks, Patty. Hope you try it!

        Reply
    8. Julie

      January 09, 2018 at 6:17 pm

      This must have such an incredible, deep flavor after roasting the cauliflower. Love a good soup recipe for cold winter days!

      Reply
      • valentina

        January 09, 2018 at 9:29 pm

        Thanks so much, Julie! Yes, it's very warming. 🙂

        Reply
    9. Eha

      November 29, 2022 at 2:34 pm

      I am not a huge 'soup person' and our coming summer leads one's thoughts more towards cold soups here in Australia . . . but I do really love the idea of this, the basil and nutmeg suggestions making one wonder how the preparation would taste . . . only one way to find out . . . thanks and hugs . . .

      Reply

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    Hi, I'm Valentina, certified chef, owner, recipe developer and photographer at Cooking on the Weekends. I'm also a mom of two boys and a Los Angeleno. I use seasonal whole foods to create unique and comforting recipes for casual entertaining.

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