No Chiri...you were right...it is cashew fruit. I did a search and found pictures.
Chirimoya said:I know what they are then - "cajuilitos soliman". We have a tree right here. They are pinky-red on the outside, whitish inside, and smaller than the cashew fruit.
Check out this amazing site with translations of plant names in every language that has a name for them. It appears that "soliman" is a corruption of Suriname. English names listed: Bell fruit, Water apple, Water cherry, Watery rose apple.
Now if only I could get this site to solve the granadillo mystery...