Mix the butter, sugar and eggs together. Mix the flour and baking powder and then add the mixture with the mulled wine to the butter-sugar-eggs and stir. The
Dough must drip viscously from the mixing spoon. Add the spices, cocoa powder and grated chocolate to the mixture.
Spread the dough on a deep baking sheet (about 5 cm). In the case of small baking trays, the dough may also have to be divided between 2 trays. Bake at 160 ° C for 15-20 minutes.
Mix a powdered sugar glaze with mulled wine. To do this, put icing sugar in a small bowl and gradually add a little mulled wine and stir until a homogeneous mass is formed. Spread the icing thinly on the finished cake and let it cool.