Cut the cheeks off each mango, then use a large spoon to scoop the flesh away from the skin for each half of the mango.
3 mangoes
Slice the flesh of 1 mango into 0.5 cm thick slices and reserve these for the decoration on top.
Finely chop the remaining 2 mangoes and set aside.
In a wide, shallow bowl, combine the orange juice and Cointreau and set aside.
juice of 1 large orange, 80 ml Cointreau
In a medium bowl, combine the thickened cream, mascarpone, icing sugar and vanilla extract.
250 ml thickened cream (heavy cream), 500 g mascarpone, 60 g icing sugar (confectioners' sugar), 1 teaspoon vanilla extract
Using a stand mixer or hand-held electric mixer, beat until the mixture reaches stiff peaks.
Working with one biscuit at a time, briefly dip each biscuit into the orange juice mixture, then place onto the base of the prepared tin to create a single layer, cutting any to fit.
24 savoiardi biscuits (ladyfingers)
Top this biscuit layer with half of the chopped mango flesh, then spread over half of the mascarpone cream.
Repeat with the remaining biscuits, chopped mango and mascarpone cream.
Cover with plastic wrap and place in the fridge to set for 4 - 5 hours (preferably overnight).