1. Heat pan and add onions, garlic and cook for 5 minutes.
2. Stir in potatoes and rosemary and cook for 10 minutes.
3. Pour in stock and water and cook for a further 10 minutes.
4. Stir in cream and cook for further 10 minutes.
5. Puree the soup with hand blender, then add chunks of hot chicken. Season and finish with lemon juice.
To make your soup extra special:
Sweet shallots or Spanish onions are delicious finely shredded and then lightly fried in a little oil in a very hot pan. Drain well and sprinkle the crisp and caramelized onions over the soup. Finish with crispy croutons and fresh sprigs of rosemary.