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    Cooking Gorgeous » All Recipes » Soups

    Roasted Cauliflower Soup with Celeriac

    Published: Dec 1, 2021 · Modified: May 11, 2022 by Ayla Clulee · This post may contain affiliate links.

    Jump to Recipe Print Recipe

    This easy yet super delicious roasted cauliflower soup with celeriac 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 flavour of the soup.

    creamy roasted cauliflower & celeriac soup
    Jump to:
    • Why This Recipe Works?
    • Ingredients and Substitutes
    • Step by Step Instructions
    • Related Recipes
    • Top Tip From the Chef
    • Roasted Cauliflower Soup with Celeriac

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

    • It 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&vegetarian friendly.
    • It is the perfect winter warmer!
    • You can turn unloved winter vegetables into a delicious soup that the whole family would enjoy.

    Ingredients and Substitutes

    Ingredients for creamy roasted cauliflower soup
    • Cauliflower - I break the cauliflower into small florets to reduce the roasting time.
    • Olive oil - I use a good quality cooking olive oil. Substitute it with melted butter for richer flavour and extra caramelisation.
    • Celeriac - It is one of the under-rated vegetables because of its knobbly, odd shape. It tastes like celery and has a slightly nutty flavour which pairs perfectly with cauliflower.
    • Onions - Use yellow, white or brown onions. I roughly chop them as they will get into a blender with the rest of the veggies.
    • Wild Garlic or garlic - Wild garlic is one of my favourite spring ingredients. They are great for making soups or adding to stews. I forage them in the spring and freeze the leaves as they are to use 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 flavour!
    • Stock - Use Homemade Vegetable Stock for vegan/vegetarian version. You can also use my Easy Chicken Stock 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.
    • Salt & pepper - Adjust the amount to your taste.

    Step by Step Instructions

    It is very easy to make this warming soup, however, you need to follow a few simple steps to achieve the best results:

    Roast the veggies

    Preheat the oven to 190° C (fan oven). In a large bowl, toss the cauliflower and celeriac with 2 tablespoon olive oil then transfer to a tray. Bake them until lightly caramelized, for about 25 minutes.

    put the celeriac and cauliflower on a tray
    Place the veggies on a tray
    roast them until soft
    Roast then until caramelised

    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. 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.

    add the stock
    Sauté the onions
    Add the stock

    Blitz

    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. If the soup is too runny, boil further until it reduces to desired consistency. Serve it warm with crispy croutons and a drizzle of olive oil.

    blitz the soup
    Blitz the soup
    serve with croutons
    Serve with croutons

    Related Recipes

    • Thermomix Pumpkin Soup
    • Autumn Squash Soup
    • Red Pepper and Tomato Soup
    • Turkish Lentil Soup
    • Ezo Gelin Corba
    • Yayla Corbasi (Turkish Yoghurt Corbasi)
    • Hot and Sour Chicken Soup
    • Wild Garlic Soup
    • Sulu Kofte (Turkish Meatball Soup)
    How long is Cauliflower & 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 desired consistency. You can also thicken the soup by boiling it a bit further until the soup reduces down to desired thickness.

    What to serve with soup?

    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. Borek with Meat and Spinach, Potato Borek, Gozleme (Turkish Pancakes) or Bazlama (Turkish Bread) are perfect accompaniments to any soup dish.

    Top Tip From the Chef

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

    I hope you enjoy the process of making this delicious&warming winter soup as much as you would enjoy eating it! 🙂

    Bon appétit! / Afiyet Olsun!

    Did you make this recipe?

    Please let me know how it turned out for you! Leave a comment below and tag @cookingorgeous on Instagram and hashtag it #cookingorgeous.

    Cauliflower and celeriac soup

    Roasted Cauliflower Soup with Celeriac

    Ayla Clulee
    Simple yet delicious soup recipe to warm your cockles up on a cold winter night.
    5 from 9 votes
    Print Recipe Pin Recipe
    Prep Time 10 mins
    Cook Time 50 mins
    Total Time 1 hr
    Course Appetizer, Main Course
    Cuisine Western
    Servings 4 people
    Calories 289 kcal

    Equipment

    • 1 Lodge 6 Quart Enameled Cast Iron Dutch Oven.
    • 1 Peeler
    • 1 Thermomix TM5
    • 1 sharp knife
    • 1 kitchen scale

    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 (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.

    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!

    FOOD SAFETY

    • Cook to a minimum temperature of 165 °F (74 °C)
    • Don’t leave food sitting out at room temperature for extended periods
    • Never leave cooking food unattended
    • Use oils with high smoking point to avoid harmful compounds
    • Always have good ventilation when using a gas stove

    See more guidelines at USDA.gov.

    This post use 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.

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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

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    Hi! Thank you for visiting Cooking Gorgeous. My name is Ayla, and I’m a professional chef based in the UK. The kitchen is my happy place and cooking is my therapy. To me, food is more than ingredients and nutrition; it is a language of love, a way of expressing compassion.

    More about me →

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