Roasted Butternut Squash Soup

Kitchen-reviewed Updated Jul 2026 Written from established cooking principles and checked for sense and safety. Not independently lab-tested.
Bowl of golden roasted butternut squash soup with a swirl of cream, pumpkin seeds and crusty bread alongside.

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.

Prep15 mins
Cook35 mins
Total50 mins
Serves4
Difficultyeasy
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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

Scale for 4 servings
  • 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 — hot
  • 100ml double cream — plus extra to serve
  • to taste sea salt and black pepper

Method

  1. 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.
  2. Roast for 30-35 minutes, turning once halfway, until the squash is tender and the edges are golden and caramelised.
  3. 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.
  4. Pour in the hot stock, bring to a gentle simmer and cook for 5 minutes to bring the flavours together.
  5. Blitz until completely smooth using a stick blender, or in a jug blender in batches. For an extra-silky finish, pass through a sieve.
  6. 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.
  7. 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.

Calories245 kcal
Protein4 g
Carbohydrate26 g
Fat14 g