1: Roll out 200 g coconut sweetcrust pastry and line your chosen tin or mould ( rectangular here). Leave the spare pastry overhanging the edges and put to wait in the fridge.
2: Preheat the oven to 390°F (200°C). Put 130 g icing sugar and 130 g dessicated coconut in a large bowl and mix with a whisk.
3: Add 60 g egg white and mix with a spoon. The mixture should be fairly thick.
4: Take the pastry case out of the fridge and trim around the edge.
5: Prick all over the base with a fork or pastry pricker.
6: Fill with a thick layer of the coconut mixture, ensuring it is even and level.
7: Bake for about 30 minutes.
8: Leave to cool on a wire rack. Finish the cold cake with a dusting of icing sugar.
Remarks
The quantity of egg white is fairly flexible: feel free to add a little more or a little less to give the right texture to the filling mixture.