For the chocolate cake, cream butter with sugar, vanilla sugar and eggs. Add the zest of the oranges and the juice.
Add remaining ingredients and mix. Bake in a rectangular baking dish at 180 °C for about 35 minutes.
For the chocolate cake, cream butter with sugar, vanilla sugar and eggs. Add the zest of the oranges and the juice.
Add remaining ingredients and mix. Bake in a rectangular baking dish at 180 °C for about 35 minutes.