On Christmas Eve I made a few loaves of persimmon bread using persimmons off my grandmother's tree. Persimmons taste awful until they are completely ripe - which almost looks like the verge of rotting. They are sweet like jelly if you wait long enough. I found a recipe that used butter. It was really great bread.
The other cool thing was that the people I gave the bread to, were so appreciative of the unique and homey fruit used. My friend said he remembered having persimmons at his grandparents also. My grandparents were quite pleased and said I can have the pick of persimmons next year :).