Oven-Roasted Tomato Jam

1. Preheat Oven and Prepare Tomatoes

Preheat the oven to 425°F. In a 9x13-inch ceramic baking dish, combine the cored plum tomatoes, light brown sugar, red wine vinegar, kosher salt, and red pepper flakes, mixing well.

2. Roast the Tomato Mixture

Place the baking dish in the preheated oven and roast the tomato mixture for about 1 hour, stirring 2 to 3 times throughout the cooking process to ensure even cooking and to help the tomatoes break down into a syrupy consistency.

3. Mash and Cool the Jam

After roasting, remove the dish from the oven and use a potato masher or fork to mash the tomatoes into a coarse paste. Allow the jam to cool completely before transferring to a 1-pint glass jar with a lid and refrigerating until chilled.