Line 4 glasses or bowls on the bottom with ladyfingers and drizzle with 1 tablespoon of whiskey liqueur each.
Melt the dark chocolate over the water bath. Meanwhile, mix the mascarpone, quark, vanilla sugar and milk to a smooth and very creamy mixture, depending on how firm the quark is, add a little more milk, the mixture should also be creamy with the chocolate.
Stir the melted chocolate into the mascarpone mixture, but not all at once, just a few spoons at a time and stir well. Pour the cream on the ladyfingers into the glasses.
Roughly grate the white chocolate and put it on the cream, the amount depends entirely on your taste, either just a little for the look or really thick for a really big chocolate taste.
Put it in the fridge until you serve it - it`s still good and nice the next day.