Cook the spaghetti or pasta in a saucepan of boiling salted water according to the packet instructions. Meanwhile, melt the butter in a medium saucepan over a low heat. Gently fry the onion for 4 ...
Put 3 tablespoons of the stock into a large saucepan over a low to medium heat. Add the onion, butternut squash and garlic and cook for 8–10 minutes, stirring occasionally, until they have softened.