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    Home • Recipes • Classic French Dishes

    Watercress Soup (Soupe au Cresson)

    Published: Oct 21, 2022 · Modified: Oct 29, 2022 by Jill Colonna19 Comments

    Jump to Recipe Print Recipe

    Have a lot of watercress? Then make this healthy watercress soup, a French classic. It's not only packed with vitamins but has a particularly gorgeous spicy flavour - even a bit cheesy without the cheese! Get the easy recipe below - but first, a visit to see watercress being harvested in the fields in Normandy, France.

    French lion bowl of bright green watercress soup

    How is Watercress Grown?

    Come join me on a walk along watercress lane (I want to live in a street called Chemin des Cressonnières - isn't it romantic?) in the Pays-de-Caux in Upper Normandy. It's the way to see the French watercress fields, or Cressonnières in Veules-les-Roses.

    Watercress (Nasturtium officinale) thrives in cool flowing streams, where it grows submerged, floating on the water, or spread over mud surfaces.

    Don't confuse it with the tiny ornamental watercress (genus Tropaeolum) that's grown on the windowsill and famously put into British egg sandwiches - they are both completely different.

    French street sign saying Chemin des Cressonnieres
    French watercress lane - life in the slower lane!

    Veules-les-Roses French Watercress Fields

    Veules-les-Roses on the Normandy coast is one of the prettiest towns in France. It has two main attractions:

    • It's home to the smallest river in France, the Veules. It's the shortest sea-bound river at 1.194 km (about ¾ of a mile), along which there are three restored 18th Century watermills.
    • It's home to the beautiful watercress beds, (cressonnières) at the source of les Veules river.

    watermill wheel churning in a river

    The clear running water's current of Veules-les-Roses has favoured the cultivation of watercress here since the 14th Century.

    watercress field surrounded by pink roses

    Harvesting watercress is done by hand with just a knife and ties to make each bundle.

    The season lasts between September and May with December seeing the best of the harvest.

    In April, there's even a Fête du Cresson in Veules-les-Roses. So if you fancy partying around watercress and learning more about it in France, this is where to go.

    For more on Normandy, read my top 10 reasons to visit Honfleur.

    How is Watercress Harvested?

    The bunches of watercress that are formed during harvesting are called chignons, when the roots of the stalks come outside the bunch.

    Luckily these days, harvesting is done wearing rubber boots, rather than sodden feet steeped in 10cm of cold (about 10°C) water wearing clogs with heavy metal leggings!

    man bending to harvest watercress in the field
    Harvesting watercress in Normandy, France

    What Does Watercress Taste Like?

    Watercress is known for its fine leaves and particularly spicy taste. It isn't bitter once cooked and if served as raw leaves in a salad, it's deliciously peppery with hints of mustard. We love it raw in small doses and it's delicious mixed with other salad leaves - served with this Onion Tarte Tatin, for example.

    However, the strong peppery taste calms down when cooked. It's not like the taste of spinach or even like this rocket (arugula) soup - once cooked in soup, it even has a slight taste of cheese to it. Don't ask why but my daughters confirm they get that too.

    spoonful of watercress soup before seasoning
    Once blended, add salt and pepper to taste

    Is Watercress Soup Good for You?

    A comforting bowl of Soupe au Cresson is extremely healthy, as it contains iron, calcium, potassium and vitamin C - and is a great antioxidant and source of protein. It's even said to reduce the effects of skin ageing.

    In France, it's popular in Autumn and Winter at the market to see stacks piled high of neatly tied bouquets of watercress.

    For more on watercress's benefits, see the watercress French market produce page.

    Each time I discuss watercress with the market sellers, there's really only one recipe the French associate with it - and this is it! Approved by the French family - even my Corsican Parents-in-Law who adore soup. It receives a firm thumbs up each time. So now over to you to make it...

    How to Make Watercress Soup

    First prepare all your ingredients: chop an onion, a garlic clove, potato (floury variety best for soup, like Russet and Binje in France) and wash the watercress.

    For more on French potatoes and other varieties for cooking, see the Market Produce Potato page.

    bunch of watercress, a peeled potato, salt, nutmeg, pepper, garlic and onion

    • In a large saucepan, heat the butter and olive oil until melted (not browned). Sweat the chopped onion and garlic for about 5 minutes until translucent and add the ground or grated nutmeg.
    • Meanwhile chop the potato and chop off the head of the watercress bundle. Discard only the large, thick stalks and keep the thin ones with the little leaves on them. This makes watercress much easier to prepare.
    • Keep a few little leaves aside for the garnish.

    Preparation for watercress soup

    • Over a medium heat, add the chopped potato, watercress and cover with the vegetable stock (or chicken if you prefer). Heat on high at first, then reduce heat to a simmer and cover with the lid slightly askew to let a little steam escape.
    • Cook gently for about 20 minutes or until the potato is soft.
    • Blitz the soup with an immersion blender then add salt and pepper to your taste (for salt, I use French fleur de sel, otherwise UK Maldon salt or US Celtic salt).

    step-by-step photos for making watercress soup

    How Long Can I Keep the Soup?

    • Cool then keep in the fridge covered for up to 2 days.
    • What's more, the soup freezes well. Leave the soup to cool and chill in the fridge in large jam jars or sealed bags then transfer to the freezer. Use within 3 months.

    How to Serve - Ideas

    • A crusty baguette with either a little butter or dip into good olive oil.
    • If serving as an elegant starter dish, top with the little watercress leaves, swirl in a dash of cream or a wee dollop of crème fraîche.
    • For something fun, why not surprise your guests with a mini savoury Mad Mac herb macaron? The recipe is on page 97 of Mad About Macarons;
    • Lovely served with fluffy cheese scones.

    bowls of green watercress soup with a swirl of cream and topped with watercress leaves

    Easy Watercress Soup Recipe

    bowls of bright green watercress soup

    Watercress Soup (Soupe au Cresson)

    Jill Colonna
    A delicious French soup of fresh watercress made with potato. It's not just packed with vitamins but has a particularly gorgeous spicy flavour - even a bit cheesy!
    5 from 1 vote
    Print Recipe Pin Recipe
    Prep Time 10 minutes mins
    Cook Time 25 minutes mins
    Total Time 35 minutes mins
    Course Soup, Starter
    Cuisine British, French
    Servings 4 people
    Calories 124 kcal

    Ingredients
      

    • 25 g (1oz/¼ stick) butter
    • 1 tablespoon olive oil
    • 1 small onion finely chopped
    • 1 clove garlic finely chopped
    • ¼ teaspoon ground nutmeg
    • 1 large potato (Binje) peeled, roughly chopped
    • 800 ml (1.5 pints/3 cups) vegetable stock (or chicken)
    • 1 large bunch of watercress 200g once prepared - smaller stalks included (big ones discarded)
    • good pinch Salt & pepper to taste

    Instructions
     

    • Wash the watercress, drain and set aside. Chop off the leaves and keep the smaller stalks (discard the large, thick stalks) and reserve a few smaller leaves for the garnish.
    • Heat the butter and olive oil in a large saucepan and sweat the onion and garlic until cooked but not browned for about 5 minutes.
    • Add the nutmeg then the chopped potato, watercress leaves (including the smaller stalks) and stock. Heat to a boil then lower the heat and simmer, covered with the lid slightly askew to let some steam escape. Simmer gently for up to 20 minutes until the potato is cooked through.
    • Blitz the soup with an immersion blender or in a food processor until smooth. Season with salt and pepper to your taste.

    Notes

    Freezes well for up to 2 months.  Otherwise can keep in the fridge covered for up to 3 days.
    If serving as an elegant starter dish, swirl in a little cream. Why not surprise your guests with a mini Mad Mac herb macaron? The recipe is on page 97 of Mad About Macarons.
    Nutritional Information: 124 Calories per serving; 2g Protein; 9g Lipids; 8g carbohydrates.
    Measures: Please note that all my recipes are best made using digital kitchen scales in precise metric grams. Both ounces (and cups) are given as a guide. 
    Keyword watercress recipe

    This post was first published 5 November 2013 but has now been updated with new photos, more info and tips.

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    Meet Jill Colonna

    Jill is both Scottish and French and author of the book and blog, Mad About Macarons since 2010. Here she shares over 30 years of experience of living the healthy food life with her French family in Paris - via easy recipes and local food guides in France.

    More about Jill

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    1. Christina

      October 30, 2022 at 2:08 am

      5 stars
      Such a light and delicious soup. I say everyone should try it!

      Reply
      • Jill Colonna

        October 30, 2022 at 9:49 am

        Thanks Christina. Agreed. Looks like any other green soup but the taste is so beautifully different. Let's just hope it's easy to find watercress outside of France!

        Reply
    2. Tracy W

      October 09, 2016 at 9:33 pm

      Thank you. I have now learned something new. I never ever knew how watercress was grown and harvested. Now the 'water' in watercress makes a lot of sense. I somehow thought it was just grown like most other veggies...in the soil. You learn something new every day !

      Reply
    3. Gintare @Gourmantine

      November 14, 2013 at 2:18 pm

      I've missed so many of your posts Jill, but it's always a pleasure to catch up! Watercress soup does sound very interesting, never tried it before, but perhaps I need all the vitamins to resist the creeping up cold. 🙂

      Reply
      • Jill

        November 19, 2013 at 5:33 pm

        Pleasure to see you popping in!

        Reply
    4. Jamie

      November 08, 2013 at 11:53 am

      What is funny is that last Friday at the market husband pointed and said "Oh look! Cresson!" I love your little trip because I did not know there was a special place devoted to cresson! This is so interesting but more than that wow is it pretty! A great little adventure - even though I can imagine how disappointed you must be about your back and your safari 🙁 But a lovely little escapade, Jill! I love discovering new hidden parts of France like this!

      Reply
      • Jill

        November 10, 2013 at 7:08 pm

        Thanks, Jamie. Well, I guess it's perhaps not so hidden now 😉
        Highly recommend you take a wee jaunt there - not far for you in Nantes.

        Reply
    5. June S

      November 06, 2013 at 11:43 pm

      Dad grows watercress in the new greenhouse. In fact I think it must have been bought for this purpose. Those egg and cress sandwich fingers at Musselburgh sure has lasting memories. M & S sells brioche fingers so with egg filling we are sorted. We loved this area in Normandy as well - must go back. Especially poignant at Remembrance Day.

      Reply
      • Jill

        November 07, 2013 at 10:55 am

        Interesting comment, Mum - as we've been used to garden cress in sandwiches - I take it that's what Dad is growing in the new greenhouse? I've not really appreciated watercress until going to Normandy. The flavour between the garden - or mustard - cress is so different, although they are related.
        Yes, highly emotional going to Normandy on the landing beaches. Coming up in the next post.

        Reply
    6. JP Durand

      November 06, 2013 at 1:29 pm

      I think you've just helped me plan a weekend away Jill. Any good addresses? 😉
      First time I've seen watercress being harvested too. Soup looks great.

      Reply
      • Jill

        November 06, 2013 at 8:04 pm

        It's a great spot for a weekend away - and this weekend is a long one too! I'll put together a post on this soon, especially as I've just created an account on TripAdvisor as didn't agree with the comments in this area. I highly recommend staying at the Casino Hotel in Saint-Valery-en-Caux just next to Veules-les-Roses. And in Veules, there's a great crêperie, Le p'tit Veulais.

        Reply
        • Jean-Pierre

          November 18, 2013 at 2:46 pm

          Hi Jill,

          I can't thank you enough for your recommendations and for your email with more addresses. Enjoyed an amazing long weekend last week and you were spot on! Merci beaucoup J-P

          Reply
          • Jill

            November 19, 2013 at 5:33 pm

            Avec plaisir!

            Reply
    7. parisbreakfast

      November 06, 2013 at 12:34 pm

      I've seen these gorgeous bunches of cresson at special marches and been soooo tempted.
      NOW I know where to go and what to do
      Big Merci!!

      Reply
      • Jill

        November 06, 2013 at 8:00 pm

        Highly recommended as another wee jaunt out of Paris - not that you're stuck for great ideas, Carol!

        Reply
    8. Linda Roberson

      November 06, 2013 at 5:54 am

      Hi Jill! Sorry to hear about your back problems! Africa is a fabulous place!

      Wanted to mention the email you sent me was full of blanks, weird designs, and stripes.

      Thank you!

      Reply
      • Jill

        November 06, 2013 at 7:59 pm

        Linda, I hear you - love Africa too but I'll go back one day (pardon the pun!)
        Thanks for letting me know about the strange email - it's perhaps a problem with Feedburner? Not good with techie issues like this but if anyone else had a problem with the email alert, please do let me know. Cheers!

        Reply
    9. Maureen | Orgasmic Chef

      November 06, 2013 at 3:52 am

      I've never seen watercress harvested before. I do enjoy it on sandwiches but soup not so much. Maybe because I've never tried yours. I'll do that and let you know. 🙂

      Reply
      • Jill

        November 06, 2013 at 7:58 pm

        Isn't that funny, Maureen? Me too - my first reaction was I'm familiar with cress in sandwiches (favourite filling on Scottish summer picnics) but this is so different as watercress. The peppery taste is a bit like roquette but it's not. The soup is delicious - hope you try it!

        Reply

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