Place the tomatoes, raspberries, salt and sugar in a medium pan.
Heat at medium heat and stir constantly
Add the lime juice, pepper flakes and the cinnamon powder just as the mixture is about to boil
Continue stirring on medium heat until the consistency is thick.
Do a taste test and add any ingredients accordingly
Allow to cool at room temperature
Store in a mason jar and refrigerate
Notes
Do not add water to this mixture because it produces its own water when heated. If you add water, you will have to leave on medium heat for a very long time trying to burn of all the water.