1. In a large soup pot, bring water to boil. Add tomatoes, celery, onion, oregano, basil, brown sugar (or other suggested sugar or substitute), and water. Reduce heat, cover pot with lid and simmer until tender, about 20 minutes. Put tomato mixture into a blender (be careful because hot soup can pop the lid off and burn you), or push through a sieve instead. When smooth, put back into soup pot and set tomato mixture aside.