In a large saucepan, combine the chopped tomatoes, chilies, sugar, apple cider vinegar, lime juice, salt, ground coriander, and ground cumin.
Bring the mixture to a boil over medium-high heat, stirring occasionally to prevent sticking.
Reduce the heat to medium-low and let the mixture simmer, stirring frequently, for 30-40 minutes, or until the jam thickens to a spreadable consistency.
To check if the jam is ready, place a small spoonful on a chilled plate. If the jam holds its shape and doesn't immediately run, it's ready.
While the jam is simmering, sterilize your jars and lids by submerging them in boiling water for 10 minutes.
Carefully transfer the hot jam into the sterilized jars, leaving about 1/4 inch of headspace. Seal the jars immediately.
Allow the jars to cool completely at room temperature before refrigerating. The chilli jam can be stored in the fridge for up to 3 months.