Mushroom and Hazelnut Soup

This is one of those magic combinations where the whole is more than the sum of its parts. You can taste mushrooms and you can taste hazelnuts, but the combination of the two is rich and complex, sort of a wild nutshroom flavor. The soup really needs no garnish except a little chopped parsley for color. However, if you are in a baroque mood, a sherry or Marsala cream will add another dimension to the soup and possibly your waistline.