1 Mix all the Crumble ingredients in a bowl with your fingertips until the mixture becomes sandy in texture then set aside in the refrigerator for 30 min.
2 Peel the pineapple and cut into slices.
3 Heat the frying pan over medium heat, add the Crumble pieces and stir until nicely browned.
4 Remove the Crumble and add the sugar to the pan to caramelize it, then add the butter, stirring all the time.
5 Arrange the pineapple slices in the caramel and caramelize for 15 min over medium heat, adding the vanilla bean split in half.
6 At the end of cooking, add the passion fruit and serve along with the Crumble.