Hydrate the gelatin with ¼ cup of water.
Mix the mango pulp with condensed milk.
Whip the cream until semi-firm, the idea is not to have whipped cream.
Mix the cream with the mango pulp mixture in folding motions.
Microwave the gelatin for 20 seconds, add a tablespoon of mousse to the gelatin mixing well, then add the gelatin to the mango mousse.
Arrange a base of blackberries in a bowl or individual glass, then add mousse and decorate with more blackberries.
Freeze for at least 2 hours.