Sift the icing sugar. Beat the egg whites with the whisks of the hand mixer until stiff. Stir in icing sugar by the spoonful. To coat the hearts, remove approx. 5 heaped tablespoons of beaten egg whites. Finely grate the marzipan and stir it with vanilla sugar, cocoa, cinnamon, almonds and nuts into the remaining beaten egg whites
Roll out the dough between two layers of baking paper 0.8-1 cm thick. Cut out hearts in two different sizes (5 + 6 cm Ø). Knead the rest and roll out again. Spread the hearts on 2 baking trays lined with baking paper and brush with beaten egg white. Sprinkle with silver beads as desired
Bake the trays one after the other in a preheated oven (electric cooker: 150 °C/ convection oven: 125 °C/ gas: stage 1) for approx. 15 minutes. Allow to cool on cake racks