Watercress and Spinach Soup

Watercress and Spinach Soup

A few spectacular storms and crisper, darker mornings have heralded the start of Autumn in Kyneton. The grass in the backyard is becoming less crunchy underfoot as it soaks up the rain, soothing its sunburn, and the pear and apple trees have started to give us their fruit.

This is my first Autumn in 18 months. The endless Spring/Summer afforded to me from a cross-hemisphere move six months ago has been delightful. I’ve had a year of juicy stone fruit, fragrant tomatoes, crisp lettuce (some of which I grew myself), barbecued meat and long, warm evenings sitting outside with friends.

But as I pack away Summer, preserving fruit, making tomato sauce and pulling up the bolted lettuce, I’m anxious to start a new season of cooking. The produce at the Farmers Markets is also in transition and my basket had a bit of each season in it this week. When I spied a bundle of watercress I also picked up a potato and some spinach to go with the broth I had bubbling away in the slow cooker at home. It’s (finally) time for soup!

Watercress and Spinach Soup

Watercress is a delicate green with a strong flavour. Its peppery kick is best paired with equally strong partners like anchovies, goats cheese and roasted meats. When whizzed into a stock it lends its mineral freshness and vivid green hue, making it a perfect gateway soup between Summer and Autumn.

Watercress and Spinach Soup

The French and British like their watercress soup creamy whereas the Chinese prefer it more brothy, which is what I felt like. A home-cooked stock is always preferable, but a good quality store-bought one is ever so practical. The recipe calls for more greens than you think will fit in your pot, but if you stir them in in batches, they’ll wilt right down. Just make sure to get rid of the thicker stalks before you toss the watercress in, as they’re a little woody. A stick blender will make quick work of turning your stock of dangly greens and potato chunks into a smooth, emerald-coloured soup. A dollop of creme fraiche or greek yoghurt would fancy up your bowl, perhaps sprinkled with some nutmeg. Or just eat it plain for a delicious serving of your daily greens..

Watercress and Spinach Soup

Watercress and Spinach Soup

Serves 4


  • 1 tablespoon olive oil
  • 1 medium onion, chopped
  • 1 medium potato, diced
  • 850ml chicken stock
  • 300g baby spinach leaves
  • 100g watercress, thickest stalks removed
  • 1/2 teaspoon grated nutmeg
  • Salt and pepper


In a large pot fry the onion in the olive oil until it’s soft. Add the potato and cook for three minutes then add the stock and simmer for a further 20 minutes, or until the potato is cooked.

Add the spinach leaves and cook on a slightly higher heat for five minutes, stirring so the leaves wilt. Add the watercress and stir for another minute or so.

Take the pot off the heat and use a stick blender to liquidize the soup. Season with salt and pepper and add the nutmeg.


Serve with crusty bread. I baked a loaf of 6-seed soda bread while I cooked the soup. I used Hugh Fearnley-Whittingstall’s recipe, and opted for the seeded variation he explains at the end.

22 thoughts on “Watercress and Spinach Soup

  1. You are a bit of a culinary adventurer, so I reckon you’d definitely have some great posts to link with our new foodie link up this month. The colour of this soup is amazing!
    It’s called Our Growing Edge and we are calling all foodies to submit a post where they’re pushed their food boundaries.
    Check it out –
    It’s a great way for more people to find you, and you for to find like minded gastronomes!

  2. Love a green soup – and as glimmers of spring appear after this crazy Northeast winter – just what the doctor ordered. Never think about adding watercress to soup or much else actually and am intrigued. Thanks!

  3. This looks delicious! I usually just stick to making watercress and mushroom soup, so I’ll have to branch out and try some other watercress soups this season.

  4. hi there!
    I know garden cress soups but watercress is new to me. I wonder what difference there is between the two herbs. Lovely soup with the spinach, for sure super healthy! Thanks fro sharing. =)

    • Hi Helene. Garden cress and watercress are related, but have different flavours (garden is more like horseradish and water more peppery) and garden cress is more sprout like. Both very good for you and delicious in soups :)

  5. What a beautiful color! I can’t wait for watercress season again. When I was a kid, we often ate a brothy, unpuréed version of this soup at the end of dinner. With a few dried jujubes to sweeten the broth, of course!

    • I follow the Union Square Green Market on Instagram (to torture myself by seeing what I’m missing!) and I saw they had watercress this week. Not sure jujubes were there though ;)

  6. Made this the other night…delicious…and so easy to make, I’ll definitely be making this again over the coming soup season

    • So happy you liked it Andy! Maybe you can make a thermos of it to take to the footy. It will at least provide some goodness at a Melbourne game ;)

  7. Pingback: April, can you believe it already? Oh the wonders of good food. | Heat in the Kitchen

  8. the first thing i thought when i read this recipe was how great this soup might be chilled. it sounds like all the flavors are super fresh. a small bowl served alongside a plate of smoked cheese and dried fruit could be a top-tier summer lunch.

    thanks for sharing this beautiful recipe, i’m gonna give it a go.

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