Wash the raisins, dab dry, mix with rum and marinate for about 30 minutes. Stir fat, sugar, vanilla sugar and salt for about 8 minutes until creamy. Stir in eggs one at a time. Mix flour, almonds and baking powder and fold into the dough, alternating with the rum raisins. Grease a box form (1.5 litres capacity, 25 cm length).
Pour in the dough, smooth it down. Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for about 1 hour. Take out, let cool down for about 10 minutes and turn out onto a cake rack. Let it cool down. Melt the chocolate coating over a hot water bath and coat the cake with it