Chilled Cream of Celery Soup, a recipe from the Worldwide Gourmet

Ingredients

• - 2 leeks, white part only
• - 6 stalks of Celery
• - 1 piece of celery root (celeriac), optional
• - 10 g (1 tbsp.) chervil
• - 2 green apples
• - 1 small onion
• - 1 1/2 liters (6 cups) chicken stock or water
• - 2 tbsp. chopped chervil
• - 250 ml (1 cup) cream
• - 2 cloves of garlic
• - 1 knob of butter
• - 1 bouquet garni