Scoop out flesh from the mangoes. Add to a food processor. Process to make a smooth purée. Transfer to a bowl. Add coconut milk. Stir to combine. Set aside.
Pour boiling water into a large bowl. Sprinkle gelatin powder over water. Stir to dissolve gelatin. Add sugar. Stir again to dissolve sugar. Add mango-coconut mixture. Stir to combine.
Pour into small glasses. Leave to set for about 2 hours in the refrigerator.
Decorate with chopped mangoes, halved cherries and mint leaves if you like.
Video
Notes
Add more or less sugar depending on the sweetness of the mangoesMake this pudding 2 days ahead and store it in the refrigerator