Fresh and Light: Surprise your children with this soup. It is delicious and good for you too!
Saute the onions in some olive oil over a medium heat. Add the garlic. Saute for another minute. Then add the potatoes, celery and celaraic. Coat ingredients in oil over heat then add hot stock. Increase the heat to high and bring to the boil. Then reduce heat so soup is simmering. Allow to simmer for 20 minutes or until vegetables are soft. Add the watercress and allow to wilt. Then take off heat and blend with a stick blender until smooth and all ingredients are incorporated. Serve hot with a splash or cream or yoghurt and some crusty bread.