Gordon Ramsay Spinach And Watercress Soup Recipe 

Gordon Ramsay’s spinach and watercress soup is a silky, vibrant green soup made with fresh watercress, baby spinach, potato, and a squeeze of lemon juice, served hot or chilled with crème fraiche. It takes about 25 minutes of active cooking plus chilling time if you serve it cold.

This recipe appears as “Chilled Watercress and Spinach Soup” in Gordon Ramsay’s Healthy Appetite. A near-identical version appears in Gordon Ramsay’s Secrets, where he calls it “one of those invaluable recipes that can be built on and taken to new heights each time you make it.” He suggests serving it hot with crème fraiche, chilled with olive oil, or dressed up with poached eggs and caviar for a special occasion.

The technique that makes his version work: he removes the pan from the heat the moment the greens wilt. Most soup recipes simmer watercress for 15 to 20 minutes, which turns it army green and bitter. Pulling the pan off at the wilt point locks in the bright colour and keeps the peppery freshness that makes watercress worth using in the first place.

FAQs

Why does Ramsay remove the pan from the heat the moment the greens wilt?

Watercress contains compounds called isothiocyanates, which give it that sharp, peppery bite. Extended cooking breaks those compounds down and replaces them with sulphurous, cabbage-like flavours. The bright green colour fades too, because chlorophyll degrades rapidly above boiling point.

By pulling the pan off the heat within a minute or two of the greens wilting, both the colour and the peppery kick survive the blending. This same technique appears across his watercress recipes in Passion for Flavour and Secrets, so it’s clearly a principle he considers non-negotiable.

Why use both watercress and spinach instead of just one?

Watercress on its own can be almost aggressively peppery in a puréed soup. The baby spinach softens that bite and adds a rounder, slightly sweeter green flavour that balances the bowl. It also deepens the colour since watercress alone can look a bit pale once blended.

The ratio matters too. Ramsay uses roughly three parts watercress to one part spinach, so the watercress character still leads. If you reversed the ratio you’d end up with spinach soup that happens to have some watercress in it, which is a different thing entirely.

Why does he include potato in a green soup?

The potato acts as a natural thickener. Without it, blended watercress and spinach produce a thin, watery liquid that feels more like a juice than a soup. One small potato, about 5 oz (150g), gives the soup enough body to coat the back of a spoon without masking the green flavours.

Ramsay specifies a small amount deliberately. Too much potato turns a delicate green soup into something stodgy. In his Secrets version he uses waxy potatoes like Charlotte, which hold together better and produce a smoother result than floury varieties that can make the texture grainy.

Can this be served hot instead of chilled?

The Healthy Appetite version is presented as a chilled soup, but his Secrets version uses the same base method and offers both options. Hot, he suggests topping with crème fraiche. For a special occasion, he floats a poached egg in each bowl and finishes with caviar.

If serving hot, reheat gently without boiling. High heat at this stage dulls the colour you worked to preserve. If you’re also making his asparagus soup with truffle cream, both soups pair well on a spring menu since they share the same light, green character.

How does the Passion for Flavour watercress soup technique differ?

His Passion for Flavour version takes a completely different approach. Instead of sautéing onion and potato first, he heats olive oil until very hot and adds 800g of watercress directly. The leaves wilt aggressively in the hot oil, which concentrates their flavour before any liquid goes in.

He then adds sliced potatoes and pours boiling salted water from a second pan over everything, simmers for 6 to 7 minutes, blends, and passes through a sieve. That version uses no spinach at all and serves the soup with briefly poached oysters. It’s a more intense, restaurant-style approach, while the Healthy Appetite version is gentler and better suited to everyday cooking.

What’s the best way to store this soup?

Chilled, this soup keeps well for up to two days in the fridge with the lid on. The colour holds because removing the pan at the wilt point stabilises the chlorophyll. After two days the green starts to fade and the flavour flattens, so it’s best made the day before you plan to serve it.

Freezing works for up to a month, though the colour will be slightly less vibrant after thawing. If you’re making a batch for your chunky vegetable soup rotation, this one is worth keeping separate since it’s much more delicate and benefits from being eaten fresh.