Beat all liquid ingredients and the eggs with the whisk until smooth. Fold in the flour, cocoa and baking powder and process into a viscous dough. Bake in a greased springform pan (26 cm) as a wreath at 160 ° C convection or 180 ° C top / bottom heat for about 45 minutes.
Cover the cooled cake with the topping of chocolate and orange juice. For the eye you can still sprinkle wedges of untreated orange peel over it.