Add halved tomatoes to a large stock pot
Add onion, celery, salt, pepper, and basil. Bring to a boil.
Add sugar or honey and stir well with an immersion blender.
Serve fresh or pressure can the soup for future use.
For canning, pour into prepared jars, wipe rims clean with a clean cloth, add prepared lids and rings and pressure can according to your pressure canner's instructions. My All American Pressure Canner requires 12 lb of pressure for 25 minutes for pint jars.
Tips*
My kids love this tomato soup. I usually cook down the soup until it is quite thick and add whole milk or creme fraiche to it after reheating it. Canning milk products are not recommended.