First, chop the marzipan paste with the bamix® SliceSy® and the chopping blade. Then finely chop the almonds with the bamix® processor. Then mix sugar, salt, cinnamon, cardamom, the egg and marzipan with the bamix® multi-purpose blade. Add almonds, flour and butter flakes and mix to a smooth dough with the bamix® multi-purpose blade. Wrap the dough in cling film and refrigerate for approx. 1 hour. Preheat oven to 175 °C. Roll out the dough on a floured work surface to a thickness of 3 mm. Cut out circles of approx. 5 cm diameter. Bake the biscuits for about 10 minutes, remove from the oven and let them cool down. Heat the jam and spread on half of the biscuits. With the bamix® whisk, make a paste using the butter, icing sugar, melted chocolate, cocoa powder and rum. Spread it on top of the jam and sandwich the biscuits together. Cover with chocolate icing and decorate with pistachios.