Wash whole figs in sink full of water. Cut off the stems and the bad spots.
Mash the figs with the potato masher and add sugar and Jell-O.
Stir and cook on medium/high heat until boiling. The mixture will turn deep red. This takes about 20-25 minutes. It is done when a drop of the liquid hangs off the edge of the spoon.
Using a funnel, ladle into hot sterile canning jars, top with hot sterile lids, and seal with rings. Process in a boiling water bath for 15 minutes.
Notes
This recipe is great with Strawberry, Raspberry, even Peach Jell-O.