Peel the fruit, cut it into thin slices and cook in one cup of water. Once the fruit pieces are tender, add the sugar and cinnamon.
Bring to a boil and let cook until the liquid thickens. Remove the foam if necessary. Once your jam is ready, let it cool in a glass jar and keep refrigerated.
Cook's Notes
This recipe is based on a pound of fruits cut into thin slices.
If you happen to have less fruits, just remember that a good jam usually has in equal parts of fruit and sugar, and adjust the measurements accordingly.