Roughly chop the chocolate. Peel and dice the bananas. Cut the vanilla pod lengthwise and scrape out the pulp. Cream fat, vanilla pulp and sugar with the whisk of the hand mixer. Stir in the eggs one by one. Mix flour and baking powder and stir in alternately with the milk.
Fold in chopped chocolate and banana pieces. Pour the dough into a greased Savarin or wreath mould sprinkled with flour (approx. 24 cm Ø; 1.5 litre capacity) and bake in a preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for 45-55 minutes (stick test). Remove the cake from the oven, let it cool down for about 15 minutes and then turn it out of the tin. Let it cool down on a cake rack. Mix lime juice and icing sugar to a glaze, drizzle in lines over the cake. Whipped cream tastes good with it
waiting time approx. 1 1/2 hours