Toast the shredded coconut in an oven preheated to 200°C. Melt the white chocolate and brush the insides of the tartlet shells. Place them in the refrigerator.
Dissolve the gelatin in boiling water. Whip the heavy cream to about three-quarters stiffness. At a low speed, combine 150 g of Lauretta filling coconut flavored filling with the shredded coconut. Add the whipped cream and gelatin.
Transfer the mixture to a piping bag. Pipe the filling into the tartlet shells and decorate as desired, for example, with toasted coconut flakes and a slice of orange.