Cream fat, sugar, turmeric, grated orange peel and salt. Stir in the eggs bit by bit. Mix flour, baking powder and chopped almonds and stir in alternately with the cream
Fill the dough into a greased, breadcrumbed box form (26 cm long; approx. 1 1/2 l capacity) and smooth it down. Bake in a preheated oven (electric cooker: 175 °C / fan-assisted oven: 150 °C / gas: level 2) for approx. 1 1/4 hours. Let the cake cool down in the tin, then turn it over and let it cool down completely
Knead marzipan and icing sugar and roll out into a rectangle (approx. 10 x 24 cm). Cut the cake in half horizontally. Warm up the jam. Spread the lower half of the cake with half of the jam. Put marzipan on top and spread with the rest of the jam. Place the upper half of the cake on top.
Melt the chocolate in a hot water bath. Cover the cake with it. Let it dry. Decorate the orange and marzipan cake with orange, almonds and lemon balm