Beat the fat, 150 g sugar, vanillin sugar and salt with the whisk of the hand mixer until foamy. Add eggs bit by bit and stir in. Mix flour, baking powder and almonds and stir in.
Cut the dough in half. Stir in half the cocoa, remaining sugar and milk. Line the bottom of a springform pan (26 cm Ø) with baking paper. Place the dough alternately with a tablespoon in the middle of the springform pan (one tablespoon of light dough, exactly on top of that one tablespoon of dark dough).
Shake the mould carefully several times. Bake in the preheated oven (electric: 175 °C/ gas: level 2) for 35-40 minutes. Remove from the oven, sprinkle with liqueur and allow to cool. Remove the cake from the tin and remove the baking paper.
Serve the Klechselkuchen dusted with icing sugar. Makes about 12 pieces.