Cut the marzipan into cubes. Mix marzipan, egg white, sugar, vanillin sugar and salt with the whisk of the hand mixer to a smooth mixture. Sift flour on top and stir in. Pour the mixture into a piping bag with a perforated nozzle (5mm Ø). Spray small croissants onto two baking trays lined with baking paper.
Carefully sprinkle with almonds and press down lightly. Bake the croissants one after the other in a preheated oven (electric: 175 °C/ gas: level 2) for 10-12 minutes. Remove from the oven and allow to cool on a rack. In the meantime, roughly chop the chocolate coating and melt in a hot water bath. Dip both ends of the croissants into the couverture and leave to dry on a grid