Anna Louise Cauliflower soup is consistently underestimated. People assume it will be bland, slightly watery, and uninteresting. A properly made cauliflower soup is none of those things — it is silky, gently sweet, with a depth that comes from roasting the cauliflower first and a richness from a little cream and good stock. It is one of the most elegantly simple soups you can make.
Mary Berry’s cauliflower soup recipe roasts the cauliflower before it goes into the soup — the same principle that elevates butternut squash and sweet potato soup on this site.
Roasting caramelises the natural sugars in the cauliflower, gives the soup a much more interesting flavour than boiled cauliflower can produce, and creates those golden, slightly charred cauliflower florets that make a beautiful garnish.
A handful of roasted florets kept back and placed on top of each bowl, a swirl of cream, and a pinch of smoked paprika — this soup looks as good as it tastes.
Why Roasting Cauliflower Changes Everything
Raw or boiled cauliflower has a mild, slightly sulphurous flavour that can taste flat in a soup. Roasted cauliflower develops a nutty sweetness and a slightly caramelised depth through the Maillard reaction — exactly the same process that makes a roasted chicken or toasted bread so much more interesting than their raw equivalents.
The difference between a roasted cauliflower soup and a boiled one is immediate and significant. Make this recipe once and you will never boil cauliflower for soup again.
Ingredients for Mary Berry Cauliflower Soup
For the Roasted Cauliflower
- 1 large cauliflower (approximately 1kg), broken into florets
- 3 tbsp olive oil
- 1 tsp ground cumin
- ½ tsp smoked paprika
- Salt and freshly ground black pepper
For the Soup Base
- 40g unsalted butter
- 1 large onion, roughly chopped
- 3 garlic cloves, crushed
- 1 tsp ground cumin
- ½ tsp ground coriander
- 1 litre good quality vegetable or chicken stock
- 150ml double cream
- Juice of ½ lemon
- Salt and freshly ground white pepper
To Serve
- A swirl of double cream or crème fraîche
- Reserved roasted cauliflower florets
- A pinch of smoked paprika
- Fresh flat-leaf parsley or chives, chopped
- Crusty bread
How to Make Mary Berry Cauliflower Soup — Step by Step
Step 1 — Roast the Cauliflower
Preheat your oven to 200°C / 180°C fan / Gas 6. Place the cauliflower florets on a large roasting tray. Drizzle with olive oil and scatter over the cumin, smoked paprika, salt, and pepper. Toss to coat evenly.
Roast for 25 to 30 minutes until the cauliflower is completely tender and golden-brown at the edges. Reserve a handful of the most attractively coloured florets for the garnish. Set aside.
Step 2 — Soften the Aromatics
Melt the butter in a large saucepan over a medium heat. Add the onion and cook for eight to ten minutes until completely softened. Add the garlic, cumin, and coriander and cook for two more minutes until fragrant.
Step 3 — Add the Cauliflower and Stock
Add the roasted cauliflower to the pan — all except the reserved garnish florets. Pour in the stock. Bring to a gentle simmer and cook for five minutes to allow everything to meld.
Step 4 — Blend
Remove from the heat and blend until completely smooth — two full minutes with a stick blender or in batches in a standard blender. Cauliflower blends to an extraordinarily silky consistency. For the smoothest possible result, pass through a fine sieve.
Step 5 — Finish and Season
Return to the hob over a low heat. Stir in the double cream and lemon juice. Warm through gently. Taste and season generously with salt and white pepper. The lemon juice lifts and brightens the sweet, gentle cauliflower flavour.
Step 6 — Serve
Ladle into warm bowls. Swirl cream over the surface. Place two or three reserved roasted cauliflower florets on top of each bowl. Add a pinch of smoked paprika and fresh herbs. Serve with crusty bread.
My Top Tips For Mary Berry Cauliflower Soup
Roast the cauliflower before anything else. As with all the roasted vegetable soups on this site — the flavour difference is dramatic. Roasting takes thirty minutes of hands-off oven time. Always worth it.
Reserve the most attractive florets for garnish. The golden, slightly charred roasted florets on top of the pale, silky soup look beautiful and immediately communicate to anyone eating it that the soup is made with properly roasted cauliflower. Keep them back from the beginning.
Use white pepper rather than black. Cauliflower soup is pale and delicate. Black pepper specks look messy in a pale soup. White pepper gives clean, subtle heat without the visual distraction.
Cumin and cauliflower is one of the great flavour pairings. The warm, slightly earthy note of cumin lifts cauliflower’s gentle flavour beautifully. Do not be tempted to leave it out.
Finish with lemon juice. Cauliflower soup can taste slightly flat without an acidic note to bring it into focus. The lemon juice at the end makes the whole bowl taste more vivid and alive.
Serving Suggestions
As a dinner party starter in small bowls with a roasted floret and smoked paprika garnish — it looks elegant and professional. As a warming weekday lunch with crusty bread. As a simple supper with good bread and a handful of toasted seeds scattered on top.
How to Store Mary Berry Cauliflower Soup
In the fridge: Store in an airtight container for up to 4 days. Reheat gently on the hob, adding a splash of stock if thickened.
In the freezer: Freeze before adding the cream for up to 3 months. Defrost overnight in the fridge, reheat gently, and stir in the cream once warm.
Mary Berry Cauliflower Soup Recipe
Ingredients
Method
- Preheat oven to 200°C / 180°C fan / Gas 6. Toss cauliflower in spiced oil. Roast 25–30 minutes until golden and tender. Reserve a handful of the best florets for garnish.
- Cook onion in butter 8–10 minutes. Add garlic and spices — 2 minutes.
- Add roasted cauliflower and stock. Simmer 5 minutes.
- Blend completely smooth.
- Return to low heat. Stir in cream and lemon juice. Warm through. Season with salt and white pepper.
- Ladle into warm bowls. Swirl cream. Top with roasted florets, smoked paprika, and herbs. Serve with crusty bread.
Notes
Frequently Asked Questions
Can I add cheese to cauliflower soup?
Yes — 75g of mature Cheddar or Gruyère stirred through the blended soup off the heat gives a richer, more robust result. Cauliflower cheese soup is a wonderful variation. Reduce the cream slightly if adding cheese.
Can I make this vegan?
Yes — use olive oil instead of butter, vegetable stock, and oat cream instead of double cream. The result is excellent.
Can I use frozen cauliflower?
You can but frozen cauliflower roasts to a paler, less caramelised result than fresh because of its higher water content. Fresh gives significantly better colour and flavour for a roasted soup.
Why is my cauliflower soup bitter?
Old cauliflower — past its best — can develop a slightly bitter flavour. Always use fresh, firm cauliflower with tightly packed, white florets and no yellowing. Yellowed florets indicate age and taste accordingly.
Can I add stilton to this soup?
Yes — see the broccoli and stilton soup recipe elsewhere on this site for a similar approach. Cauliflower and stilton works equally well — crumble 75g of stilton into the blended soup off the heat and stir until melted.
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