Please read How to Process.
I. ROASTED, WITH SMOKED PAPRIKA
In this recipe, smoked paprika and optional chipotle add smokiness and a little heat. Oven-roasting the tomatoes removes much of their moisture, decreasing the amount of time you’ll have to cook them down on the stovetop.
Preheat the oven to 400°F. Lightly oil 2 large baking sheets or, for easier cleanup, line the baking sheets with parchment paper. Place in a single layer on the baking sheets, cut side up:
- 5 pounds Roma, San Marzano, Amish Paste, or other sauce tomatoes, halved
Roast until the tomatoes are shriveled and lightly browned, 35 to 40 minutes. If desired, slip the skins off the tomatoes.
Transfer the tomatoes to a large heavy pot and stir in:
- 2 cups sugar
- ⅓ cup bottled lemon juice
- 1 tablespoon smoked paprika
- 2 teaspoons pickling salt
- 1 teaspoon red pepper flakes
- 1 teaspoon black pepper
- (½ teaspoon chipotle chile powder)
Bring to a boil, then reduce the heat to medium-low to simmer, stirring frequently, until thick, 30 to 40 minutes. When placed on a plate, a spoonful of the jam should stay in a mound and not exude watery liquid.
While the jam cooks, prepare a water-bath canner, gather all your canning equipment, and have ready 5 clean, hot half-pint jars.
Ladle jam into prepared jars, leaving ½ inch headspace. Wipe the rims. Place lids on jars and screw on rings until fingertip-tight. Process for 20 minutes. Let cool completely and store as directed.
II. WITH SMOKED TOMATOES
This version takes longer to cook down than version I but has a lovely, lightly smoked flavor.
Prepare a smoker. Place cut side up on the grate of the smoker or on a rack:
- 5 pounds Roma, San Marzano, Amish Paste, or other sauce tomatoes, halved
Smoke between 225° and 250°F for 1 hour. If desired, peel the skins off the tomatoes.
Transfer the tomatoes to a large pot and stir in:
- 2 cups sugar
- ⅓ cup bottled lemon juice
- 2 teaspoons pickling salt
- 1 teaspoon black pepper
- 1 teaspoon ground coriander
- 1 teaspoon ground cumin
Bring to a boil, then reduce the heat to medium-low to simmer, stirring frequently, until thick, 30 to 40 minutes. When placed on a plate, a spoonful of the jam should stay in a mound and not exude watery liquid. Ladle into prepared jars and process as directed in version I.