Once the fruits mature with dark purple fruits they can be harvested. When you handle them, keep in mind that the color will come off into your hands.
*The fruits make a nice dye in frostings or other foods*
Wash the juicy coating and leave the seeds to dry completely in a sunny location.
You can leave the fruit whole and let dry in a sunny place but if you don't dry completely the seeds will turn bad.
I've done it both ways. Just set them in a tray on a shelf under the porch where they had morning sun. You can also just dry inside on a paper plate in a airy place. It worked easily, either way.
PICTURED: Malabar fruits ready to pick