This Keto Celery Soup truly is one of the best low carb soups I have tried. It may even be my favourite. Serve this one to the whole family any time of year!
Three bowls of celery soup with ham croutons on top.

This keto celery soup recipe is going to knock your socks off! I am serious! This is one of the best soups I have tried. It is light, foamy, silky smooth and comfortingly good! An easy recipe on the table in under 45 minutes that the whole family will love!

Why This Celery Soup is So Good!

  • It’s really easy to make! Prep only takes about 10 minutes and it is cooked in the one pot!
  • This celery soup makes use of everyday ingredients!
  • Thermomix, Magimix and Instant Pot friendly! You can make this easy celery soup in your Thermomix and in no time. Or pressure cook (or slow cook it) in your Instant Pot.
  • This recipe is keto and low carb with only 5g net carbs per serving
  • All our recipes are tested in multiple kitchens and by multiple home cooks! We want to create the best keto recipes! Quality and flavour is super important to the Mad Creations team!

Cream of Celery Soup

I have always loved the versatility of cream of celery soup. Often used as the base for casseroles I love how you can use the soup as a sauce, or just a simple soup that is also keto and low carb.

This soup is very light and creamy! I recommend using homemade chicken broth for the recipe! It adds so much more flavour!

The Key Ingredients for Celery Soup

Keep reading for more details on the ingredients, substitutes and step by step instructions on how to make our delicious keto leek and celery soup.

Celery Soup Ingredients.

Cauliflower – This celery soup without potato uses cauliflower to thicken it. Most celery soup recipes use potato. The cauliflower replaces it. Trust me, the kids won’t even know it is there!

Onions and leeks – both the onions and leek, do add carbs to this soup, but they also add loads of flavour! You can omit them completely to reduce the carbs or if you cannot eat them for allergies or just don’t enjoy them.

Celery – I use fresh celery to make this celery soup very light and creamy. You can use celeriac root if you prefer. It adds the flavour and makes the soup more hearty!

Ham Croutons – I used leftover Christmas ham for my croutons. You can swap for bacon or speck. Or any crispy croutons you prefer.

Fried celery leaves! Oh my gosh these are amazing! You need to try them with this soup! Trust me, you will never throw the leaves out again!

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Chefs Tips

For a vegetarian or vegan celery soup simply swap the broth to vegetable broth. Leave out the ham croutons and don’t add the cream.

Make a big batch and enjoy it later in the week. Or freeze it celery soup freezes really well. You will have a great low carb soup to enjoy on its own or as a base for a hearty family meal.

Variations

Carrot and Celery Soup – Add 1-2 carrots (chopped) at step one.

Cream of Potato and Celery soup – swap potato for the cauliflower.

Add protein – add chicken thigh fillets at step 1 for a chicken and celery soup. Add white fish fillets after pureeing the soup and poach in the hot liquid.

How To Make Cream of Celery Soup

Step 1. Melt the butter in a Dutch oven or large saucepan over medium-high heat. Sauté the onion, leek, celery, cauliflower, and garlic until the vegetables begin to soften; 7-8 minutes.

Step 2. Add the chicken broth and bay leaf; cover and simmer for 10 minutes. Add the heavy cream; cover and simmer until the vegetables are tender, approximately 10-15 minutes.

Step 3. Remove the bay leaf and puree the soup with a stick blender or food processor for 2 minutes or until silky smooth. Season to taste.

Step 4. In a separate pan heat the avocado oil over medium-high heat and lightly fry the ham until crispy. Set aside to drain on some paper towel.

Step 5. Using the same pan fry the celery leaves until crisp. Drain the leaves on a piece of paper towel. Divide the soup between serving bowls and top with ham croutons, crème frâiche, fresh herbs, and fried celery leaves.

This keto celery soup recipe has been provided with Instant Pot instructions. It also includes slow cooker (or Crockpot), stovetop and Thermomix methods.

Love this Recipe? Then You’ll Love…

Here are just a few great keto soup recipes. I am always playing around with a lot of soups and these are just a few of my best soups.

Green soup in brown bowls.

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Three bowls of celery soup with ham croutons on top.

Easy Leek and Celery Soup

This Keto Celery Soup truly is one of the best low carb soups I have tried. It may even be my favourite. Serve this one to the whole family any time of year!
5 from 116 votes!
Prep Time: 10 minutes
Cook Time: 30 minutes
Total Time: 1 hour 46 minutes
Course: Soup
Cuisine: American, Australian
Diet: Diabetic
Recipe Category: Low Carb
Calories: 232kcal
Author: Megan Ellam
Servings: 8 people
Tap or hover over number to scale ingredients
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Ingredients 

  • 3 tablespoons (3 tablespoons) butter or avocado oil
  • ¼ (¼) onion 3oz., finely sliced
  • 1 (1) leek white part only, finely sliced
  • 5 cups (5 cups) celery, roughly chopped (1.25lbs or 550g)
  • 300 g (3 cups) cauliflower roughly chopped
  • 2 cloves (2 cloves) garlic roughly chopped
  • 3 cups (3 cups) chicken broth
  • 1 (1) bay leaf
  • 1 cup (1 cup) heavy cream
  • Salt flakes and pepper to taste

TO GARNISH

  • 1 cup (1 cup) diced ham or slab bacon
  • 2 tablespoons (2 tablespoons) avocado oil plus extra to serve
  • ½ cup (0.5 cup) celery leaves
  • 4 tablespoons (4 tablespoons) crème frâiche or sour cream 80g
  • 1 tablespoon (1 tablespoon) fresh dill or parsley finely chopped

Instructions

CONVENTIONAL METHOD

  • Melt the butter in a Dutch oven or large saucepan over medium-high heat. Sauté the onion, leek, celery, cauliflower, and garlic until the vegetables begin to soften; 7-8 minutes.
  • Add the chicken broth and bay leaf; cover and simmer for 10 minutes. Add the heavy cream; cover and simmer until the vegetables are tender, approximately 10-15 minutes.
  • Remove the bay leaf and puree the soup with a stick blender or food processor for 2 minutes or until silky smooth. Season to taste.
  • In a separate pan heat the avocado oil over medium-high heat and lightly fry the ham until crispy. Set aside to drain on some paper towel.
  • Using the same pan fry the celery leaves until crisp. Drain the leaves on a piece of paper towel. Divide the soup between serving bowls and top with ham croutons, crème frâiche, fresh herbs, and fried celery leaves.

INSTANT POT® METHOD

  • Place all the ingredients into the pot. Set to Pressure Cook/High Heat/13 minutes. When finished allow natural release for 5 minutes before triggering quick release. Follow from step 3 in the conventional method.

SLOW COOKER OR STOVE TOP METHOD

  • Place all the ingredients into the slow cooker; cook on low for 4-5 hours or high for 2-3 hours. Follow from step 3 above.
  • For stovetop, turn down to low, cover with a lid and cook on low checking every hour until hemp is soft and ham is falling off the bone. Follow from step 2 in the Instant Pot method.

THERMAL METHOD

  • Add the butter, onion, leek, celery, cauliflower, and garlic, into the mixer; chop 4 sec/speed 6. Scrape down the sides of the bowl.
  • Add the remaining ingredients to the mixer (filling only to the max line with broth); set to slow cook/100min/95°C (or 100 min/95°C/reverse/stir).
  • Discard the bay leaf and puree the soup in two batches; 30sec/speed 5-9 (or less if you prefer the soup slightly chunky). Adjust seasoning to taste.
  • Follow steps 4 and 5 in the conventional method.

Notes

Recipe yields approximately 8 servings. Actual number of servings will depend on your preferred portion sizes and the cooking method.
To calculate the weight of one serving, prepare the recipe as instructed. Weigh the finished recipe, then divide the weight of the finished recipe by 8. Result will be the weight of one serving.
Nutritional values shown are guidelines only. They are for 1 serving using the ingredients listed. Actual macros may vary slightly depending on product brand and types of ingredients used.
All recipes have been tested using all of the cooking methods included by various recipe testers.
This recipe has also been shared to Diet Doctor for inclusion in their 2021 Holidays recipes and Members eMag.
Store in an airtight container in the fridge for up to 4 days. Alternatively store in an airtight container and freeze.
This recipe card instructions contains the most basic of steps and list of ingredients. If you have any queries, questions or are unsure of substitutions please scroll up to the blog post for more information.
 

Your Own Notes

Nutrition

Serving: 1serve | Calories: 232kcal | Carbohydrates: 8g | Protein: 6g | Fat: 21g | Saturated Fat: 11g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 7g | Trans Fat: 0.2g | Cholesterol: 58mg | Sodium: 632mg | Potassium: 396mg | Fiber: 2g | Sugar: 4g | Vitamin A: 1144IU | Vitamin C: 23mg | Calcium: 79mg | Iron: 1mg | Magnesium: 22mg | Net Carbs: 6g
Tried this recipe?Mention @meganellam or tag #madcreations!

Megan Ellam is an Australian keto recipes blogger and author of amazing keto cookbooks such as Slow Cook KetoKeto LocoThe Healthy Family Keto Cookbook and Every Day Keto.

Megan has been following a ketogenic diet since being diagnosed with insulin resistance in early 2017.

Share This Recipe

44 responses to “Leek and Celery Soup – With Ham Croutons”

  1. Jeannie

    5 stars
    this soup is so healthy and amazing love the addition of ham croutons

  2. Lilly

    5 stars
    This soup is so delicious! I love how easily it came together! Thank you for the great recipe and detailed instructions.

  3. Emily

    5 stars
    You had me at “ham croutons.” My whole family of picky eaters loves celery and ham. This is going to be a hit at our house.

  4. Monica Binnick

    Is it possible to leave out the cream?
    I’m lactose intolerant. Or, can I use something else?
    Would love to try this recipe.
    Thanks,
    Monica

    1. Megan Mad Creations Hub

      Hi Monika, you certainly could leave it completely or even add some cauliflower to replace it that will “cream” up when processed.

  5. Addie

    5 stars
    This soup is so smooth and creamy!

  6. Oscar

    5 stars
    This soup was super creamy and those ham croutons were amazing. So flavourful, great recipe.

    1. Megan Mad Creations Hub

      Thanks for trying Oscar!

  7. Amanda Scarlati

    5 stars
    I have never made celery soup before but this was so good! Don’t skip the ham croutons…they make the dish!

    1. Megan Mad Creations Hub

      Woohoo!

  8. Natalie

    5 stars
    I just saved this recipe. It’s a lovely soup packed with seasonal veggies. Can’t wait to make it. Thanks!

    1. Megan Mad Creations Hub

      Yay! So happy you loved it.

  9. Michael DiMaggio

    5 stars
    We love this celery soup in our households! Such an easy recipe and so delicious!

    1. Megan Mad Creations Hub

      So happy you enjoyed it Michael.

  10. Jessica

    5 stars
    I’d never had celery soup until last night and boy have I been missing out! This soup is creamy, delicious, and so comforting. The flavors were spot-on, too. Definitely will be making this again.

    1. Megan Mad Creations Hub

      So glad you enjoyed it Jessica. Thanks for trying it.

  11. Audrey

    5 stars
    This is sooo much better than the canned stuff!

    1. Megan Mad Creations Hub

      Light years of difference Audrey. x

  12. Jean

    5 stars
    This celery soup is a game changer for our soups, love how healthy it is with lots of other vegetables.

    1. Megan Mad Creations Hub

      Yay!

  13. Jules

    5 stars
    The most beautiful ingredients ever! and BTW your photography is stunning, I love all the shots. I adore celery juice, but celery soup is next level!

    1. Megan Mad Creations Hub

      Yay! I hope you give it a try.

  14. Jules

    5 stars
    I have to say your photography is gorgeous, the photos, the yummy soup, the creative recipe, the use of avocado oil, I’m just in love!

    1. Megan Mad Creations Hub

      Thanks Jules.

  15. nancy

    great! I love that you added different methods to cook this soup! the photos looks awesome!

    1. Megan Mad Creations Hub

      Thanks Nancy.

  16. Linda

    5 stars
    I’ve never tried celery soup before and this one is so creamy comforting. Love every slurp!

    1. Megan Mad Creations Hub

      Yay!

  17. Kayla DiMaggio

    5 stars
    I am loving this celery soup! It is so delicious and I love how creamy it is!

    1. Megan Mad Creations Hub

      I am so glad you enjoyed it Kayla.

  18. Lucy

    5 stars
    I was lucky to test this soup and it has quickly become a favourite in our house. The whole family love it. Whether for keto or non keto members, everyone will love its smooth abd creamy texture. It is delicious.

    1. Megan Mad Creations Hub

      A new favourite for us all Lucy.

  19. Penny P

    5 stars
    This soup is amazing! Even my young children couldn’t get enough of it. Absolutely love the crispy celery leaves on top too.

    1. Megan Mad Creations Hub

      I always love to hear that the kids enjoyed a meal too. Thanks for the review Penny.

  20. Lynda

    5 stars
    I loved cream of celery soup growing up but it used to have potato in it and I haven’t been able to enjoy a bowl since going on my keto journey.
    This soup is a game changer and is everything I remember it to be. It’s also very easy to make .The ham croutons and the fried celery leaves are such an added bonus to this soup. Once again I have a beautiful keto celery soup to enjoy.
    Thanks Megan for ketofyng this recipe. I highly recommend making this soup.

    1. Megan Mad Creations Hub

      So glad you enjoyed it Lynda and thanks for testing it out. x

5 from 116 votes (95 ratings without comment)

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