A very warm and delicious winter soup! We actually made it for our family as a side dish at last Thanksgiving! We got rave reviews, everybody loved it so much, the large pot disappeared very fast, it didn't last long. Roasted squash and apple gave the soup lots of yummy flavors, chopped hazelnuts added some crunchy texture and nutty, tangy flavors. We served it with a savory pie together, the flavors perfectly matched. Or you can serve the soup with some crusty bread, which is always good! We like it being warm, but you can eat it at room temperature or chilled as well.