Chilled avocado soup

Ingredients:

• 2 ripe avocados,
• 600ml/1pt chicken stock,
• 2 tablespoons lemon juice
• 2 tablespoons chopped fresh chives
• 1⁄2 teaspoon chilli powder
• salt
• 2 tablespoons sour cream, to serve           

 

• Peel and stone the avocado. Blend
  or process the flesh into a purée.
  Add the remaining ingredients,
  except the sour cream, and blend
  until smooth. Allow to chill for a
  few hours before serving  
• To serve, add the sour cream, stir
  through and serve the soup chilled.