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    Cooking Gorgeous » Recipes » Soups

    Roasted Cauliflower Soup with Celeriac

    Published: Dec 1, 2021 · Modified: Oct 13, 2023 by Ayla Clulee · This post may contain affiliate links.

    Jump to Recipe

    This easy yet super delicious Roasted Cauliflower Soup with Celeriac (Celery Root) is a perfect winter warmer and extremely easy to make.

    The combination of two underrated and not much-loved vegetables is surprisingly satisfying.

    Although roasting the vegetables might sound like an extra job and more washing up, it is a necessary step to intensify the flavor of the soup.

    creamy roasted cauliflower & celeriac soup
    Jump to:
    • Why This Recipe Works?
    • Ingredients You'll Need
    • Step-by-Step Instructions
    • Top Tip From the Chef
    • Serving Suggestions
    • Recipe FAQs
    • Related Recipes
    • Roasted Cauliflower Soup with Celeriac

    For this extremely satisfying soup, I roast cauliflower and celeriac with olive oil until nicely caramelized to intensify the flavor.

    I then simmer it with onion, wild garlic (or garlic), and good-quality homemade stock to transform it into a delicious blended soup.

    Why This Recipe Works?

    • Roasted Cauliflower Soup with Celeriac (Celery Root) is full of nutrition as well as being healthy and delicious.
    • You can substitute the chicken stock with vegetable stock and double cream with coconut milk to make it vegan and vegetarian-friendly.
    • This cozy Cauliflower and Celery Root soup is the perfect winter warmer!
    • You can turn unloved winter vegetables into a delicious soup that the whole family would enjoy.

    Ingredients You'll Need

    Please scroll down to the recipe card below for the full ingredients list with measurements, complete recipe method, recipe notes, and nutritional information.

    Labeled picture of ingredients for roasted cauliflower soup with celeriac recipe
    • Cauliflower - When buying cauliflower, look for firm ones that have creamy white color without any signs of browning. Their florets should be crisp, and the outer leaves should be fresh, with no sign of yellowing or wilting. I break the cauliflower into small florets to reduce the roasting time.
    • Celeriac - It is one of the under-rated vegetables because of its knobbly, odd shape. It tastes like celery and has a slightly nutty flavor which pairs perfectly with cauliflower.
    • Wild garlic or garlic - Wild garlic is one of my favorite spring ingredients. They are great for making Wild Garlic Soup or adding to stews. I forage them in the spring and freeze the leaves as they are to be used throughout the year. I also make delicious Wild Garlic Pesto and freeze them in small jars. You can use garlic bulbs instead and roast them together with cauliflower and celeriac to pump up the flavor!
    • Stock - Use Homemade Vegetable Stock for the vegan/vegetarian versions. You can also use Easy Chicken Stock (Bone Broth) to give this delicious soup extra richness.
    • Double cream - It adds extra creaminess to the soup. You can substitute it with whipping cream or heavy cream. Use coconut milk for the vegan version.

    Step-by-Step Instructions

    It is very easy to make this warming Cauliflower and Celeriac Soup.

    However, you need to follow a few simple steps to achieve the best results:

    Roast the Veggies

    Preheat the oven to 190° C - 375° F (fan oven).

    In a large bowl, toss the cauliflower and celeriac with 2 tablespoon olive oil then transfer to a tray.

    celeriac and cauliflower are placed on a tray

    Bake them until lightly caramelized, for about 25 minutes.

    celeriac and cauliflower are roasted until soft

    Build the Soup Base

    When the cauliflower and celeriac are almost ready, place a pan on medium heat and saute the onions with 1 tablespoon olive oil until soft. 

    Add the wild garlic or garlic and saute for another minute.

    Sautéing the onions with olive oil in a Dutch oven

    Transfer the roasted cauliflower and celeriac to the pan and add stock, double cream, salt, and pepper. 

    Bring the pan to boil on medium heat, lower the heat, and gently simmer for 20-25 minutes until the cauliflower and celeriac are soft.

    Cauliflower and celery root soup is cooked until tender

    Blitz

    Remove the pan from the heat and blend until smooth.

    blitzing the soup in a thermomix

    Check the seasoning, and add more salt if needed.

    Add more stock if the soup is too thick. If the soup is too runny, boil further until it reduces to the desired consistency.

    Serve it warm with crispy croutons and a drizzle of olive oil.

    creamy roasted cauliflower & celeriac soup served with croutons

    Top Tip From the Chef

    If celeriac is not your type of vegetable, replace it with more cauliflower or substitute it with your favorite root vegetable.

    Serving Suggestions

    Soup is delicious on its own but if you want to add some side dishes.

    I would recommend you to serve it with some Turkish savoury pastries such as Phyllo Meat and Spinach Pie (Egyptian Goulash), Potato Borek, Gozleme (Turkish Pancakes) or Bazlama (Turkish Flatbread) are perfect accompaniments to any soup dish.

    Accompany the soup with a side salad, such as Watermelon Feta Salad with Basil and Cucumber, or a citrusy Rocket and Parmesan Salad, to create a well-balanced and satisfying meal.

    A drizzle of extra-virgin olive oil not only enhances the soup's richness but also adds a touch of elegance to the presentation.

    A slice of warm, Bolillo - Crusty Mexican Bread Rolls is perfect for dipping into the creamy soup.

    Recipe FAQs

    How long is Cauliflower and celeriac Soup good for in the fridge?

    This soup keeps fresh for up to five days when refrigerated in an airtight container. If you want to keep it longer, you can freeze it and keep it for up to three months.

    How to thicken Cauliflower Soup?

    This recipe makes perfectly creamy and thick soup but if you end up with runny & thin soup, the best way to thicken it is to use a cornstarch slurry.
    Simply mix a tablespoon of cornstarch with a tablespoon of cold water and turn it into a paste. Add it gradually to your simmering soup until it thickens to the desired consistency.
    You can also thicken the soup by boiling it a bit further until the soup reduces to the desired thickness.

    Related Recipes

    For more delicious winter soup recipes why not try:

    • Chinese Hot and Sour Chicken Soup
    • roasted pumpkin soup made in Thermomix
      Creamy Roasted Vegan Pumpkin Soup Recipe
    • yayla Corbasi Turkish yoghurt Corbasi served with mint sauce
      Yayla Corbasi - Turkish Yogurt Soup
    • Turkish red lentil soup is served with a slice of lemon
      Turkish Red Lentil Soup - Kirmizi Mercimek Corbasi

    Did you make this recipe? Please let me know how it turned out! Leave a comment below and tag @cookingorgeous on Instagram and hashtag it #cookingorgeous.

    I hope you enjoy the process of making this creamy and comforting Roasted Cauliflower Soup with Celeriac as much as you enjoy eating it! 🙂 

    Bon appétit! / Afiyet olsun!

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    Cauliflower and celeriac soup

    Roasted Cauliflower Soup with Celeriac

    Ayla Clulee
    This easy yet super delicious Roasted Cauliflower Soup with Celeriac (Celery Root) is a perfect winter warmer and extremely easy to make. 
    5 from 15 votes
    Prevent your screen from going dark
    Print Recipe Pin Recipe
    Prep Time 10 minutes mins
    Cook Time 50 minutes mins
    Total Time 1 hour hr
    Course Appetizer, Main Course
    Cuisine Western
    Servings 4 people
    Calories 289 kcal

    Equipment

    • 1 Lodge Dutch oven
    • 1 peeler
    • 1 Sharp knife
    • 1 kitchen scale
    • 1 measuring spoons
    • 1 Ninja BN601 Food Processor

    Ingredients
     
     

    • 3 tablespoon olive oil (2 + 1 separately)
    • 350 g cauliflower fleurets
    • 500 g celeriac (roughly chopped)
    • 1 medium onion (diced)
    • 20 g wild garlic (chopped) (or 2 cloves of garlic roughly chopped)
    • 1 litre chicken stock or vegetable stock
    • 120 ml double cream (½ cup)
    • 1 teaspoon salt
    • ½ teaspoon freshly ground black pepper

    Instructions
     

    • Preheat the oven to 190° C - 375° F (fan oven).
    • In a large bowl, toss the cauliflower and celeriac with 2 tablespoon olive oil then transfer on a tray.
    • Bake them until lightly caramelized, for about 25 minutes.
    • When the cauliflower and celeriac are almost ready, place a pan on medium heat and saute the onions with 1 tablespoon olive oil until soft.
    • Add the wild garlic or garlic and saute for another minute.
    • When the cauliflower and celeriac are ready and roasted, transfer them to the pan and add stock (chicken or vegetable), double cream, salt, and pepper.
    • Bring the pan to boil on medium heat, lower the heat and gently simmer for 20-25 minutes until the cauliflower and celeriac are soft.
    • Remove the pan from the heat and blend until smooth. Check the seasoning, add more salt if needed.
    • Add more stock if the soup is too thick or boil further until it reduces to desired consistency.

    Notes

    • If celeriac is not your type of vegetable, replace it with more cauliflower or substitute it with your favorite root vegetable.
    • When buying cauliflower, look for firm ones that have creamy white color without any signs of browning. Their florets should be crisp, and the outer leaves should be fresh, with no sign of yellowing or wilting.
    • This soup keeps fresh for up to five days when refrigerated in an airtight container.
    • If you want to keep this Cauliflower and Celeriac Soup for longer, you can freeze it and keep it for up to three months.
    • Add more stock if the soup is too thick. If the soup is too runny, boil further until it reduces to desired consistency.

    Nutrition

    Calories: 289kcalCarbohydrates: 21gProtein: 5gFat: 22gSaturated Fat: 9gPolyunsaturated Fat: 2gMonounsaturated Fat: 11gCholesterol: 41mgSodium: 747mgPotassium: 720mgFiber: 5gSugar: 5gVitamin A: 442IUVitamin C: 56mgCalcium: 108mgIron: 1mg
    Tried this recipe?Mention @cookingorgeous or tag #cookingorgeous!

    This post uses affiliate links. This means that if you click on them and then buy something, we get a small amount of commission to keep the site running, but it doesn’t cost you anything more.

    « Easy Chicken Stock (Bone Broth)
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    Reader Interactions

    Comments

    1. Nicola

      December 19, 2021 at 8:16 am

      5 stars
      We loved this soup recipe, delicious and really easy to make.

      Reply
      • Ayla Clulee

        December 19, 2021 at 12:16 pm

        That's wonderful to hear Nicola, thank you for sharing your experience with us 🙂
        Best wishes
        Ayla

        Reply
    2. Audrey

      March 24, 2022 at 5:38 am

      5 stars
      I love this recipe, it tastes even better the next day as the flavours are enhanced.

      Reply
    3. Laryssa

      March 25, 2022 at 5:30 am

      5 stars
      I am so glad I found this recipe. Best soup ever!

      Reply
      • Ayla Clulee

        March 25, 2022 at 3:26 pm

        Thank you for your kind comment, glad you enjoyed it.
        Best wishes
        Ayla x

        Reply
    4. Rita

      March 26, 2022 at 4:05 am

      5 stars
      Absolutely delicious!

      Reply
    5. Amandine

      March 30, 2022 at 12:27 pm

      5 stars
      I made this soup yesterday and it turned out great. Will definitely make this again.

      Reply
    6. Vanessa

      April 05, 2022 at 4:35 am

      5 stars
      This has quickly become a favourite in my house. Love how easy and delicious it is!

      Reply
    7. Ellen

      April 08, 2022 at 4:38 am

      5 stars
      This soup exceeded my expectations. It looked as beautiful as the photo and it tasted delicious!

      Reply
    8. Dorothea

      April 09, 2022 at 5:17 am

      5 stars
      It was delicious and I cannot wait to eat the leftovers for lunch. So simple, so delicious I highly recommend it.

      Reply
    9. Hanka

      April 18, 2022 at 6:19 am

      5 stars
      This was incredible! I can't believe how delicious and creamy it was! First time I ever tried celeriac.

      Reply
    10. Meg

      April 26, 2022 at 4:54 pm

      5 stars
      I’m not a fan of cauliflower but this soup is brilliant, easy and tasty. My favourite way to eat this vegetable now!

      Reply
    11. kyla Bromhead

      September 09, 2024 at 5:49 pm

      5 stars
      Lovely ! !

      Reply
      • Ayla Clulee

        September 09, 2024 at 6:22 pm

        Thank you so much Kyla!

        Reply
    5 from 15 votes (4 ratings without comment)

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    Welcome to Cooking Gorgeous, where delicious easy-to-follow recipes and culinary inspiration await you! My name is Ayla Clulee, a passionate and professional Cordon Bleu-trained chef, recipe developer, and food content creator with decades of experience. I am based in the UK, and I'm thrilled to have you here.

    The kitchen is my happy place and cooking is my therapy.

    More about me →

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