Preheat oven (electric cooker: 175 °C/circulating air: 150 °C/gas: see manufacturer). Grease springform pan (20 cm Ø) and dust with flour. Heat milk and cocoa in a saucepan over medium heat, stirring well with a whisk.
Set aside.
Mix 150 g flour, 50 g starch, baking powder, 300 g sugar and 1⁄2 TL salt. Add 150 g butter and knead with the dough hooks of the mixer for about 2 minutes. Stir in cocoa milk and eggs evenly.
Fill the dough into the tin, smooth it down and bake in a hot oven for 40-45 minutes. Take out and let it cool down.
Drain the cherries and collect the juice. Stir 20 g starch with 5 tbsp. juice until smooth. Boil up the rest of the juice with 2 tbsp. sugar. Stir in the starch and simmer for about 2 minutes. Stir in cherries and let cool down.
Break 200 g dark and milk chocolate into pieces with your hands. Boil 250 g cream and honey in a pot. Remove from the heat, add the chocolate and stir until the chocolate has melted and a smooth mass is formed.
Remove the base from the springform pan and cut through horizontally twice. Place the bottom cake layer on a cake plate, cover with a cake ring or the edge of the springform pan and sprinkle with 2 tbsp. kirschwasser.
Spread half the chocolate cream, then half the stewed cherries on top. Place the middle cake layer on top and sprinkle again with 2 tbsp. kirschwasser. Spread the rest of the chocolate cream and cherries on top. Finish with the top cake layer and sprinkle with 2 tbsp. cherry brandy.
Chill the cake for about 4 hours.
Whip 150 g cream until stiff. Finely grate 50 g cold dark chocolate. Carefully remove the cake from the cake ring, spread cream all around and decorate with chocolate shavings.