I found a great recipe online to make homemade garden fresh tomato preserves. When I was little my mom brought home canned tomato preserves from one of my grandma's. I think it was her mom, but I'm not sure. She didn't do a sealed can, she did a wax seal. At any rate, I tried this recipe for the first time about 4 years ago. I was afraid that it wouldn't taste like I remembered. However, it was PERFECT. So this year, I did 10 half pints with the last red tomatoes I could find at the farmers market.
This recipe is from pickyourown.org