• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
The Wimpy Vegetarian
  • Home
  • About Susan
    • About Susan
    • Privacy Policy and Terms of Use
  • Recipe Index
  • Essential Pantry
    • Reduced Balsamic Vinegar
  • Contact Me
menu icon
go to homepage
  • About
  • Recipes
  • Meal Plans
  • Resources
  • Subscribe
    • Facebook
    • Instagram
    • Pinterest
    • Twitter
  • search icon
    Homepage link
    • About
    • Recipes
    • Meal Plans
    • Resources
    • Subscribe
    • Facebook
    • Instagram
    • Pinterest
    • Twitter
  • ร—
    Home ยป SOUP, CHILI, AND CURRY

    Watercress and Buttermilk Vichyssoise

    Modified: Apr 5, 2025 by Susan Pridmore ยท This post may contain affiliate links ยท 24 Comments

    Watercress Buttermilk Vichyssoise in glasses, topped with a dollop of mascarpone.

    Want to Save This Recipe?

    Enter your email & I'll send it to your inbox.ย Plus, get great new recipes from me every week!

    Save Recipe

    Move over kale, there's a new powerhouse in town. Well, it's actually been around for a long time. In fact, Hippocrates built his first hospital near a natural springย because it was a natural habitat for this green. I'm talking about watercress.

    What? The limp, frail little thing found in English tea sandwiches with crusts trimmed off?

    Yes. It's Clark Kent before he ducked into a phone booth to morph into Superman.

    Through the centuries, this peppery green was a staple for both the diets of Roman soldiers and of the poor working class in England, and then ebbed out of favor. But it's seen a recent surge in popularity. Technically it's in the same cruciferous family of kale, broccoli, Brussels sprouts, and arugula, but packs the highest nutrition punch of all, yes even more than kale, calorie for calorie. It's great for building bones, fighting cancer, and lowering blood pressure - and 2 cups weighs in at a skinny 7 calories.

    So next time you're at the market, pick some up. Chop and scramble it into some eggs, add itย to salads, or sautรฉย in olive oil, salt and pepper, toย add to your next batch of brown rice.

    Or, make this soup. It's a great lunch, or a starter soup served in shooter glasses for your next party. Since it's served chilled, you'll have plenty of time to whip it up a couple of days before your guests arrive.

    Want to Save This Recipe?

    Enter your email & I'll send it to your inbox.ย Plus, get great new recipes from me every week!

    Save Recipe
    Watercress Buttermilk Vichyssoise
    5 from 2 votes

    Watercress and Buttermilk Vichyssoise

    The prep and cook time do not include time to chill the soup in the refrigerator. Recipe makes 4 ยฝ cups.
    Print Recipe Save Saved! Pin Recipe Add to Recipe Collection Go to Collections Add to Shopping ListGo to Shopping List
    Prep Time20 minutes mins
    Cook Time25 minutes mins
    Total Time45 minutes mins
    Course: Soup
    Cuisine: French
    Keyword: chilled soup, cucumber soup with watercress, soup
    Servings: 4
    Calories: 239.8kcal
    Author: Susan Pridmore
    Prevent your screen from going dark

    Ingredients

    • 2 tablespoons unsalted butter
    • 1 cup finely diced sweet onion
    • ยฝ cup thinly sliced leeks โ€“ white and very very light green parts only
    • 2 cups thinly sliced Yukon potatoes
    • 1 teaspoon chopped garlic
    • 2 cups vegetarian broth
    • 3 bunches watercress leaves and stems chopped (about 6 cups, chopped)
    • 1 cup buttermilk
    • 1 ยฝ teaspoon kosher salt
    • ยฝ teaspoon white pepper
    • 2 tablespoons mascarpone cheese
    • pinch kosher salt
    • ยฝ teaspoon lime juice or to taste

    Instructions

    • Melt the butter in a heavy bottomed pot over medium heat - I use my Le Creuset for this. Add the onion and leeks and reduce the heat to medium-low. Put a lid on the pot and cook the onions and leeks until soft - about 15 minutes. At this level of heat, it's more sweating than sautรฉing - be careful not to brown!
    • Add the potatoes and garlic. Replace the lid to the pot and cook for another 5 minutes.
    • Add the broth and watercress, and bring to barely a simmer. Cook for 5 minutes, and pour the soup into a blender. I use my Ninja blender for this. Purรฉe the soup and pass through a food mill if desired. The food mill will ensure that any stems remaining are removed.
    • Stir in the buttermilk, salt and pepper. The soup may taste under salted, but when chilled it will be fine. Chill for a few hours or ideally overnight before serving.
    • Whip together the mascarpone cheese, salt and lime juice with a small whisk or fork. Drop a ยฝ teaspoon dollop of cheese on each soup shooter.

    Nutrition

    Calories: 239.8kcal | Carbohydrates: 30.3g | Protein: 5.5g | Fat: 11.2g | Saturated Fat: 6.9g | Polyunsaturated Fat: 0.4g | Monounsaturated Fat: 2g | Trans Fat: 0.2g | Cholesterol: 29.1mg | Sodium: 1422.9mg | Potassium: 654.9mg | Fiber: 3.2g | Sugar: 7.3g | Vitamin A: 841.7IU | Vitamin C: 27.4mg | Calcium: 113.5mg | Iron: 1.3mg
    ยซ Orange Mango Smoothie with Lime & Ginger
    Nut-Free Anise Biscotti with Chocolate Chips ยป

    About Susan Pridmore

    Susan Pridmore is an award-winning cookbook author and the owner of The Wimpy Vegetarian. She has been featured in Huffington Post, Healthline, BuzzFeed, and has written for and developed recipes for The Food Network and Parade Magazine. She is professionally trained and focuses on easy vegetarian recipes for busy lives, bread-baking, and tips for new vegetarians. Susan lives in the mountains in Lake Tahoe with her husband and mini-labradoodle.

    Reader Interactions

    Comments

    1. Liz

      February 24, 2015 at 4:07 am

      What an elegant soup, Susan! It's been years since I've had watercress soup---and it was garnished with some sort of shellfish! Yours looks just as amazing.

      Reply
      • The Wimpy Vegetarian

        March 05, 2015 at 9:54 am

        I hadn't had it in years either! Thanks so much!

        Reply
    2. Miss @ Miss in the Kitchen

      February 24, 2015 at 5:53 am

      This looks incredibly delicious! We out driving around looking at some land the other day and my husband spotted some wild watercress. I really wanted to stop and grab it because I can never find it in the stores here.

      Reply
      • The Wimpy Vegetarian

        March 05, 2015 at 9:56 am

        Next time, grab it!! It's so, so good for you! I found some mint growing along the road just this week while I was walking our puppy and snatched some up ๐Ÿ™‚

        Reply
    3. Heather | girlichef

      February 24, 2015 at 6:39 am

      Oh, I love watercress, but I definitely don't use it enough. Buttermilk in chilled soups is so amazing, I love the creaminess and the tang it adds. This sounds fantastic!

      Reply
      • The Wimpy Vegetarian

        March 05, 2015 at 9:56 am

        Buttermilk is such a good addition to things - like Greek yogurt is. I love creamy tangy flavors.

        Reply
    4. Oui, Chef

      February 24, 2015 at 6:46 am

      So beautiful, Susan! I LOVE watercress, and only wish it were easier to find around here.

      Reply
      • The Wimpy Vegetarian

        March 05, 2015 at 9:57 am

        Thanks Steve! It's all over here, but I can never find ramps. Never. So I'll send you some watercress, and you can send me ramps.

        Reply
    5. lizthechef

      February 24, 2015 at 8:22 am

      Your soup looks lovely - I remember picking it from the creeks near our house in PA when I was little. My mother laughed when I called it "Watercrust"....

      Reply
      • The Wimpy Vegetarian

        March 05, 2015 at 9:58 am

        I love it - watercrust. I sometimes see it growing wild here too - I had no idea until more recently just how nutritious it is.

        Reply
    6. Barb | Creative Culinary

      February 24, 2015 at 9:24 am

      Wow; sounds fantastic and I happen to have both leeks and potatoes. No watercress though but I'm intrigued enough to source some and give this a shot. Me and Napolean! ๐Ÿ™‚

      Reply
      • The Wimpy Vegetarian

        March 05, 2015 at 9:59 am

        It's been interesting to me to see that not everyone has tons of watercress in the stores like we do! It's definitely worth sourcing.

        Reply
    7. Ansh

      February 24, 2015 at 10:31 am

      This is a Diva like soup. So elegant and sexy at the same time. Watercress is one of my favorite greens. I just never thought of a soup with it. Until now ๐Ÿ˜€

      Reply
      • The Wimpy Vegetarian

        March 05, 2015 at 10:00 am

        Thanks so much Ansh! I love the idea of a Diva soup! This is perfect for entertaining!

        Reply
    8. Jane, The Heritage Cook

      February 24, 2015 at 10:51 am

      5 stars
      You never fail to thrill and amaze us Susan! I love this soup and did not realize it packs the same power as broccoli and the other greens. I love watercress but the others are too much for my high bitter sensitivity. Now, thanks to you, I have the solution!

      Reply
      • The Wimpy Vegetarian

        March 05, 2015 at 10:01 am

        Who knew? I sure didn't. Once I saw the report on it, I buy watercress every chance I have now. Luckily we get it in all our stores ๐Ÿ™‚

        Reply
    9. Eha

      February 24, 2015 at 4:11 pm

      5 stars
      A kifelong lover of vichyssoise I am more than chuffed at having found such an elegant interpretation and, loving watercress and buttermilk, cannot wait to try the taste . . . like your plating also ๐Ÿ˜‰ !!

      Reply
      • The Wimpy Vegetarian

        March 05, 2015 at 10:01 am

        Thanks so much!

        Reply
    10. Jeanette Chen

      February 24, 2015 at 4:16 pm

      I haven't had watercress in so long - such a beautiful presentation!

      Reply
      • The Wimpy Vegetarian

        March 05, 2015 at 10:02 am

        Thanks so much!

        Reply
    11. Suzanne

      February 24, 2015 at 4:54 pm

      Susan, I love this recipe. Watercress is one of my favorites and I never thought of making into soup, the recipe is amazing and your presentation is gorgeous. I can't wait to make this.

      Reply
      • The Wimpy Vegetarian

        March 05, 2015 at 10:03 am

        Thanks so much Suzanne! I'm way behind on commenting - so forgive the delay. I love watercress too - and it makes such a nice soup. I think you'd really enjoy it ๐Ÿ™‚ Hope you're doing well!!

        Reply
    12. Lana | Never Enough Thyme

      February 26, 2015 at 5:22 am

      What an elegant soup! This would be a perfect starter for any dinner party or a lovely summer luncheon.

      Reply
      • The Wimpy Vegetarian

        March 05, 2015 at 10:04 am

        Absolutely, Lana! And with Easter around the bend, this would make a nice starter. Oh wait - St. Pats would be another occasion for watercress soup!

        Reply
    5 from 2 votes

    Leave a Reply Cancel reply

    Your email address will not be published. Required fields are marked *

    Recipe Rating




    Primary Sidebar

    Susan at The Wimpy Vegetarian

    about the author:

    Susan Pridmore

    Hi there! I'm an award-winning cookbook author, culinary school graduate, professional photographer and recipe developer. My cookbook Simply Vegetarian was named #1 best cookbook for new vegetarians, and I want to make it easier for you to cook fabulous vegetarian meals. Come join me in the kitchen!

    More about me โ†’

    READER FAVORITES

    • A bunch of popcorn scattered across some parchment paper, with a jar of nutritional yeast.
      "Nooch" Nutritional Yeast Popcorn (Best Popcorn Ever!!)
    • One half of a sliced caprese panini on a cutting board.
      Grilled Italian Pesto Caprese Panini
    • Summer peach cake topped with fresh peaches and blueberries on a marble counter.
      Lazy Summer Peach Cake Recipe with Blueberries
    • A bowl of fresh strawberry salsa with a crostini spread with cheese and topped with salsa.
      Easy Strawberry Salsa Recipe with Chocolate Nibs

    15 Tips for Going Vegetarian (Updated!)

    A colander filled with freshly washed apples with text overlay.

    Purchase My Cookbook!!

    Footer

    โ†‘ back to top

    About

    • About
    • Purchase my cookbook
    • Privacy Policy
    • Terms & Conditions

    Newsletter

    • Sign Up! for emails and updates

    Contact

    • Contact
    • Recipe Index

    Copyright ยฉย 2025 The Wimpy Vegetarian

    Rate This Recipe

    Your vote:




    A rating is required
    A name is required
    An email is required

    Recipe Ratings without Comment

    Something went wrong. Please try again.