Defrost the raspberries, except for a few for decoration. Halve the lady fingers and sprinkle with raspberry brandy. Mix quark, mascarpone, sugar, vanilla pulp and milk. Whip cream until stiff and stir in.
Place the biscuits, raspberries and mascarpone cream alternately in a bowl. Put them in a cold place. Peel off fine rolls from the chocolate with a peeler. Just before serving, sprinkle the cream with the remaining raspberries and part of the chocolate.
Add the rest of the chocolate.