Score the mangoes all around except for the core. Separate the halves by turning them in opposite directions.
Remove the pulp from the peels with a teaspoon, making sure to collect the juice.
Blend the pulp and mango juice with the pineapple juice in a hand blender.
Rinse the grapes, cut them in half and perhaps remove the seeds. Add to the mango puree form along with the pineapple chunks. Refrigerate until ready to serve. Instead of the fresh mango fruit, use 2 cans of mango slices as well. This makes it even easier and faster to prepare this juicy exotic dessert.
Mass: 4 servings