Blanch tomatoes: Bring 6 qts. of water to a boil in a large Dutch oven over high heat. Add tomatoes, and boil 1 minute to loosen skins. Drain and plunge tomatoes into ice water to stop the cooking process.
Peel and chop tomatoes: Peel tomatoes over a medium saucepan, letting juices drip into saucepan. Core and chop tomatoes; place in saucepan.
Boil jam mixture: Stir in sugar and next 7 ingredients. Bring to a low boil over medium heat; reduce heat to low, and simmer 30 to 40 minutes or until thickened.
Mash jam: Remove and discard cloves. Mash tomato mixture to desired consistency, using a potato masher. Remove from heat, and cool 20 minutes. Refrigerate in an airtight container up to 1 month.
