Prepare shortcrust pastry and refrigerate for 1 hour. Melt the butter, add sugar, vanilla sugar and water and bring everything to a boil. Stir grated coconut and nuts into the mixture and allow to cool.
Roll out the dough on a greased baking sheet, prick several times with a fork and spread the orange jam on top. Spread the coconut mixture over it.
Bake in a preheated oven at 200 ° C for about 30 minutes.
Let the cake cool down a bit, then cut into triangles and dip the corners of the cooled in couverture and let dry.