This quick, simple and healthy soup makes a perfect lunch - just add bread and butter. It freezes brilliantly too.
Heat the olive oil and the butter in a large saucepan, add the onion, cover and fry gently for 3-4 minutes.
Add the butternut squash and continue to cook for a further 2-3 minutes. Season to taste with salt and freshly ground black pepper.
Add the vegetable stock cubes with 750ml/1¼ pint water and the milk and bring to the boil. Reduce to a simmer and cook for six minutes, or until the butternut squash is tender.
Transfer to a blender and pulse until smooth.
Taste, and add more salt and pepper if required. Finish with a little lime juice.
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James visits a hospital in Essex where the catering department's survival is at risk.