Roasting the squash before blending concentrates its natural sweetness and adds a gentle caramelised depth you never get from boiling alone. This version is silky, lightly spiced and comes together with pantry staples, making a comforting British starter for four.
Roasting is the secret here: tumbling butternut squash with a little oil until the edges caramelise gives the finished soup a deep, sweet flavour that boiling simply can’t match. It’s mostly hands-off, uses everyday ingredients, and blends down to a glossy, warming bowlful. Perfect as a starter, or a light lunch with good bread.
Ingredients
- 1 large butternut squash (about 1kg) butternut squash — peeled, deseeded and cut into 3cm chunks
- 2 tbsp olive oil
- 1 onion — roughly chopped
- 2 cloves garlic — left whole in skins
- 1 carrot — roughly chopped
- 1 tsp ground cumin
- 0.5 tsp ground coriander
- 800ml vegetable stock (1½ pints) — hot
- 100ml double cream — plus extra to serve
- to taste sea salt and black pepper
Method
- Heat the oven to 200°C fan (220°C conventional). Tip the squash, onion and carrot onto a large roasting tray, add the whole garlic cloves, drizzle with the olive oil and season well. Toss to coat.
- Roast for 30-35 minutes, turning once halfway, until the squash is tender and the edges are golden and caramelised.
- Squeeze the soft garlic out of its skins and scrape everything into a large pan. Sprinkle over the cumin and ground coriander and warm through for a minute to release their aroma.
- Pour in the hot stock, bring to a gentle simmer and cook for 5 minutes to bring the flavours together.
- Blitz until completely smooth using a stick blender, or in a jug blender in batches. For an extra-silky finish, pass through a sieve.
- Stir in the double cream and gently reheat without boiling. Taste and adjust the seasoning, loosening with a splash more stock if it's too thick.
- Ladle into warm bowls and finish with a swirl of cream and a grind of black pepper.
Serve it with
- Warm crusty sourdough or a buttered baguette
- A swirl of cream and toasted pumpkin seeds
- Crispy sage leaves fried in butter
- A drizzle of chilli oil for gentle heat
- Cheese scones or garlic bread
Why this works
Roasting drives off water and caramelises the squash's sugars, so the soup tastes richer and sweeter than a boiled version. Roasting the garlic whole in its skin turns it mellow and nutty rather than sharp.
Common swaps
- Use crème fraîche or coconut milk in place of double cream (coconut keeps it dairy-free).
- Swap butternut for crown prince pumpkin or sweet potato.
- Add a pinch of chilli flakes or a knob of grated ginger for extra warmth.
- Use chicken stock instead of vegetable stock if you prefer.
- Stir in a spoonful of curry paste with the spices for a spiced version.
Common mistakes to avoid
- Skipping the roasting and boiling the squash instead, which gives a watery, flat-tasting soup.
- Crowding the roasting tray so the squash steams rather than caramelises; use a large tray in a single layer.
- Boiling the soup hard after adding the cream, which can cause it to split.
- Under-seasoning; squash needs a confident hand with salt to taste its best.
Storage, freezing & reheating
Storage: Cool completely, then keep in an airtight container in the fridge for up to 3 days.
Freezing: Freezes well for up to 3 months; freeze before adding the cream for the best texture, then stir cream in when reheating.
Reheating: Reheat gently in a pan over a low-medium heat, stirring often, until piping hot. Add a splash of stock or water if it has thickened.
Allergen notes: contains Milk. Always check individual product labels.
Estimated nutrition
Per serving, estimated from typical ingredient values — not a substitute for precise dietary calculation.
| Calories | 245 kcal |
|---|---|
| Protein | 4 g |
| Carbohydrate | 26 g |
| Fat | 14 g |