A nice variation is squash curried soup: Add a tsp or 2 of curry to the butter and fry with the onion, proceed as usual (omit nutmeg). / You can make this into a complete meal by adding cooked, peeled shrimp to the curried variation. Add the shrimp to the blended soup, go on cooking for a few minutes till shrimp is heated through. / If you don't like milk that much, you can substitute up to 1/2 liter milk with vegetable or chicken broth. Soup will be less creamy, though. This one is a classical Swiss and French recipe for squash soup.