Finely grate the chocolate. Finely crumble the lady fingers in the universal chopper. Separate the eggs. Mix margarine and 175 g sugar until creamy. Stir in the egg yolks bit by bit. Mix chocolate, sponge crumbs, almonds and baking powder and gradually stir into the fat-sugar mixture. Beat egg whites with salt until stiff. First fold 1/3 of the egg white into the dough, then fold in the remaining egg white
Grease the bottom of the springform pan (26 cm Ø). Pour in the dough and smooth it down. Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for 45-50 minutes. Let it cool down on a cake rack
Soak gelatine in cold water. Squeeze about 3 oranges and measure 300 ml juice. Mix the juice with orange peel, 100 g sugar and orange liqueur. Dissolve the gelatine carefully, stir in the orange juice. Chill the juice mixture until it begins to gel (approx. 10-15 minutes). Remove the cake base from the mould and cut it in half crosswise once, place the cake ring around the bottom cake base. Whip the cream until stiff and fold into the gelatinizing juice. Spread the cream cream on the cake base and smooth it down. Place the upper cake base on top. Chill for 3 hours
Peel 3 oranges and remove the white skin thoroughly. Cut into slices. Remove the cake from the ring and cover with the orange slices. Mix the cake glaze with 2 tbsp. sugar in a small pot. Mix with wine. Heat everything while stirring and bring to the boil briefly. Spoon it onto the oranges. Let the icing set. Dust the cake with icing sugar and decorate with lemon balm
waiting time approx. 4 hours