chestnut mushroom soup

RECIPE DIRECTION :

1. Melt the butter and oil in a large saucepan over a high heat. Add the onions and celery and cook for 5 minutes, then stir in the garlic and fry for 30 seconds.
2. Add the mushrooms to the saucepan and fry for 5 minutes until golden but not wet, turning them regularly.
3. Pour in the stock and bring up to the boil. Reduce the heat, cover with a lid and simmer for about 20 minutes, or until the vegetables are tender.
4. Ladle into a food processor and blend until smooth, or use a hand-held stick blender.
5. Return the soup to the saucepan over a medium heat and stir in the soy sauce and most of the cream. Season to taste with salt and freshly ground black pepper, then serve in warm soup bowls. Drizzle with the remaining cream and scatter the parsley over the top to finish.