One of my favorite fruit trees in the garden is the Jabuticaba.
I have three, two that Camillo put in more than 20 years ago and do not give anything in the way of fruit and a new, small one we just planted. The first year here, I got enough fruit to make one VERY good batch of jelly, to become addicted and since then nada. We have put in this new tree in a sunny location and more space around, and it has already bloomed. We got about about 2 dozen fruits but there is hope for the 2 kilo I will need for jelly in the future. The fruit is a deep purple when ready, about the size of a large grape, with a white pulp and a seed in the center. The pulp is very sweet and you can eat them as is - but I love the jelly. If I am lucky enough to get 2 kilo in the future (80% fully ripe and 20% greenish) I can make 4 jars of jelly without adding any pectin or other fruits. The jelly is tart and sweet and we love it on fresh bread.