Drain the cherries. Mix quark, 75 g sugar and aniseed, while stirring in the mineral water. Fold in the cherries. Melt the fat in a small saucepan and let it cool down a little.
Mix flour, 35 g sugar, vanillin sugar, baking powder and salt in a bowl. Whisk buttermilk and eggs. Pour into the flour mixture while stirring and mix to a smooth, thin wafer dough.
Dust with icing sugar.