Easy tomato jam recipes include a summer tomato jam recipe from Fine Cooking and a sun-dried tomato jam recipe from MyRecipes. The main ingredients for tomato jam typically include tomatoes, sugar, vinegar and seasonings.
To prepare summer tomato jam, chop 4 1/2 pounds of ripe tomatoes, and discard the seeds. Dissolve 3/4 cup of granulated sugar in 1/4 cup of white vinegar and 1/4 cup of water in a pot over medium heat before stirring in the tomatoes, along with 1 teaspoon of red pepper flakes and 1/2 teaspoon of salt. Simmer the mixture over low heat for 90 minutes or until it reaches a desirable consistency. Add more salt to taste, if necessary. Allow the jam to cool completely before storing it in a jar, and keep it in the refrigerator for up to two months.
To make sun-dried tomato jam, roughly chop oil-packed sun-dried tomatoes from 3 7-ounce jars. Combine the tomatoes with 3 tablespoons of sugar, 3 cups of sliced onions and 3 minced cloves of garlic in a saucepan over medium-high heat. When the tomatoes are tender, pour in 1/2 cup of red wine vinegar and 1/4 cup of red wine; cook the mixture for three minutes before adding 1 cup of water and 1/2 cup of fat-free, low-sodium chicken broth. Boil the mixture briefly before lowering the heat and allowing it to simmer for 45 minutes or until it thickens. Season the jam with 1 tablespoon of minced fresh rosemary and 3/4 teaspoon of salt.