Biriba/Rollinia
Rollinia mucosa
 
Rollinia deliciosa is a species of flowering plant in the custard-apple family, Annonaceae, that is native to tropical South America. It is cultivated for its edible fruits, commonly known as biribá, lemon meringue pie fruit, or wild sugar-apple, throughout the world's tropics and subtropics.
 
Seedling (nb: images are mature fruit trees).