There is something special about a piping hot bowl of soup on a cold day. It warms you through in a way that very few other dishes can do. For many years, I thought Cream of Mushroom Soup was just a can of something that you added to other recipes for additional creaminess. That was until I had a delicious bowl of homemade Cream of Mushroom that was made not to be added to a casserole but made to enjoy all by itself...or with a sandwich. And while we're on the subject, this soup is special in that regard as well. There are very few sandwiches out there that don't…