Mix 250 g flour, almonds, sugar, vanilla sugar and baking powder. Add the egg, 1 tablespoon cold water and butter in pieces. Knead first with the dough hooks of the mixer, then briefly with your hands to a smooth short pastry.
Wrap dough in foil and chill for about 20 minutes.
Roughly chop the chocolate. Heat the cream in a pot, remove from the heat and dissolve the chocolate in it while stirring. Let the chocolate cream cool down and put it in a cool place for about 1 hour.
Line two baking trays with baking paper. Roll out short pastry 2-3 mm thin on a floured work surface. Use a cookie cutter to cut out approx. 32 bunnies (each approx. 5.5 x 10 cm) and spread them on the baking trays.
Knead and roll out the dough again and again until the dough is used up. Bake the cookies one after the other in a preheated oven (electric cooker: 200 °C/circulating air: 175 °C/gas: see manufacturer) for approx. 10 minutes each and let them cool down.
Mix the short pastry bunnies with the chocolate cream. Squeeze gently and chill for about 30 minutes.
Mix icing sugar with lemon juice to a thick icing. Put the icing in a freezer bag and cut off a small tip. Spray the icing as a tuft on the bunnies and sprinkle sugar pearls on top immediately.
Allow to dry and decorate the bunnies with bows.