Watercress loses its vibrant green colour quickly once it’s overcooked, which is why so many watercress soups end up a dull, khaki colour rather than the bright green they should be.
This recipe adds the watercress right at the end and blends it in immediately, keeping the cooking time to an absolute minimum so both the colour and the fresh, peppery flavour stay intact.
It’s a quick soup, built around getting the timing of that final step exactly right.
Why Adding the Watercress at the Very End Keeps the Colour Vivid
Watercress contains chlorophyll, the same pigment responsible for its bright green colour, which breaks down quickly when exposed to prolonged heat.
Simmering watercress for too long turns it a dull, brownish green, which is why this recipe builds a base of potato and stock first, then adds the watercress only in the final couple of minutes before blending.
Blending the soup immediately after the watercress goes in, rather than letting it simmer further, locks in as much of that vivid colour and fresh, slightly peppery flavour as possible.
This is a soup where speed at the final stage genuinely matters more than a long, slow simmer.

Ingredients for Gordon Ramsay Watercress Soup
- 1 tbsp olive oil
- 1 onion, roughly chopped
- 1 medium potato, peeled and diced
- 800ml vegetable or chicken stock
- 2 x 85g bags watercress, tough stalks removed
- 100ml double cream, plus extra to serve
- Salt and freshly ground black pepper
How to Make Gordon Ramsay Watercress Soup — Step by Step
Step 1 — Cook the Onion
Heat the olive oil in a large pot over medium heat. Add the onion and cook for 5–6 minutes until soft.
Step 2 — Add the Potato and Stock
Add the diced potato and stock. Bring to a simmer and cook for 12–15 minutes, until the potato is completely soft.
Step 3 — Add the Watercress
Add the watercress to the pot and cook for just 1–2 minutes, until wilted but still bright green.
Step 4 — Blend Immediately
Remove from the heat straight away and blitz with a stick blender until completely smooth.
Step 5 — Finish with Cream
Stir in the cream and warm through gently over low heat, without letting it boil.
Step 6 — Season and Serve
Season with salt and pepper to taste. Serve immediately with a swirl of extra cream.
My Top Tips for the Best Gordon Ramsay Watercress Soup
Add the watercress right at the end, cooking it for just a minute or two, as prolonged heat turns its colour dull and flat rather than bright green.
Blend the soup immediately after adding the watercress, as letting it sit in the hot liquid any longer will continue to dull the colour.
Remove any particularly tough, thick stalks from the watercress before adding it, as these can leave a slightly stringy texture even after blending.
Add the cream off a hard simmer, gently warming rather than boiling, to avoid it splitting.
Serve as soon as possible after making, since this soup’s vivid colour and fresh flavour are both at their best right after blending.
Serving Suggestions
Serve with a swirl of extra cream and a slice of crusty bread on the side. It also works well as a starter before a roast dinner, served in smaller portions.
How to Store Gordon Ramsay Watercress Soup
In the fridge: Store in an airtight container in the fridge for up to 2 days. The colour will dull slightly on standing, though the flavour holds well.
In the freezer: Freezes reasonably well for up to 2 months, though the vivid green colour fades somewhat on freezing and reheating. For best results, freeze before adding the cream.

Gordon Ramsay Watercress Soup Recipe
Ingredients
Method
- Cook onion 5–6 minutes.
- Add potato and stock, simmer 12–15 minutes until soft.
- Add watercress, cook 1–2 minutes until wilted.
- Blend immediately until smooth.
- Stir in cream, warm gently without boiling.
- Season, serve with a swirl of cream.
Notes
Frequently Asked Questions About Gordon Ramsay Watercress Soup
Why has my soup turned a dull colour instead of bright green?
This almost always means the watercress was cooked for too long before blending. Add it right at the end and blend immediately for the brightest colour.
Can I make this soup without cream?
Yes — it’s still good without it, giving a lighter, slightly sharper soup. A splash of milk can be used for a little creaminess without the full richness of double cream.
Can I use a food processor instead of a stick blender?
Yes, though take care blending hot liquid in batches, and work quickly once the watercress goes in to preserve the colour.
What can I use instead of potato?
A small amount of cooked white beans can be used to thicken the soup in place of potato, giving a slightly different but still creamy texture.

