Created by Marramamba on August 10, 2015
Step 1: In a large bowl, mix together the tomatoes, onions, celery, sugar, salt and spices. Cover the bowl with a clean tea towel and let rest for 12 hours.
Step 2: Place a strainer over a large, heavy pot. Pour the tomato mixture through the strainer, pressing to obtain as much juice as possible. Reserve the tomato pieces left in the strainer. Add the vinegar and tomato paste to the pot. Bring to a boil and let reduce until the liquid is syrupy in consistency (about 15 minutes).
Step 3: Stir in the reserved tomato pieces and continue cooking on mediumlow for 30 minutes, stirring often. Adjust seasoning as necessary and divide the ketchup mixture among six jars.