Cream soft fat, sugar and salt. Add eggs bit by bit and stir in. Stir in orange peel as well. Mix flour and baking powder. Alternately stir in with the milk. Grease a springform pan (26 cm Ø). Fill in the dough and smooth it down. Bake in the preheated oven (electric cooker: 175 °C / fan oven: 150 °C/ gas: level 2) for 35-45 minutes. Allow to cool down
Drain the mandarins. Whip the cream until stiff, adding the firming agent, vanilla sugar and cappucino powder. Pour into a piping bag with a large perforated spout. Spray the cream dab close together on the base. Spread the mandarins on top
Roughly chop the chocolate, place in a solid freezer bag and melt in a hot water bath. Cut off a tiny corner of the bag and draw the chocolate in fine strips over the cream patches