Winter Squash, Apple And Walnut Soup

• 1/2 walnut (toasted pieces)
• 650 gr pureed winter squash (frozen)
• 240 ml cream (light)
• 240 ml unsweetened applesauce
• 350 ml chicken stock
• 30 gr walnuts (ground toasted)
• 18 gr butter (unsalted)
• 10 gr chervil (dried)
• 1 gr mace (ground)