Drain the cherries and collect the juice. Measure 350 ml of juice and take off 2-3 tbsp. Boil up the rest of the juice with 50 g sugar. Stir starch with 2-3 tbsp. juice until smooth, bind remaining juice with it. Let cool down
In the meantime, stir yoghurt, quark, lemon juice, 50 g sugar and vanillin sugar until smooth. Put them in a cold place. Fold the cherries into the cherry juice. Arrange quark yoghurt cream with cherry compote on plates and decorate with mint. Serve with sponge fingers