Small purple fruit

I recently relocated to placencia Belize. I was in Publics market the other day and purchased these small dark purple fruits. They have purple tendrals that close around a small green berry or fruit of some sort. The whole thing is not bigger than a half dollar. I guess they use them in some drinks. Does anyone have any clue what this is?

If anyone will know, Spiceman39 would be the one to ask, or go to his website www.belizespicefarm.com and browse through the pictures of fruits to see if you can ID it.