Instructions: Combine ingredients in a large saucepan. Bring to a boil, then reduce heat and simmer, stirring frequently until thick (about 1 hour). Ladle hot mixture into pint jars, leaving 1/2-inch headspace. Adjust lids and process in boiling water canner: 15 minutes for 0-1,000 feet altitude; 20 minutes at 1,001-6,000 feet; 25 minutes above 6,000 feet.

Yield 16-18 pints

This recipe works best with paste tomatoes. Slicing tomatoes require a much longer cooking time to achieve a desirable consistency. Liquid must be reduced.

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