Drain the apricots on a sieve. Mix the quark, mascarpone, lime peel and juice, sugar and vanillin sugar with the whisks of the hand mixer to a creamy mixture and refrigerate for about 20 minutes.
Warm up the jam and stir until smooth. Melt the chocolate coating in a hot water bath, let it cool down a little so that it is still liquid. Pour cream into a piping bag with a star-shaped spout. Pour a tuff into each apricot half.
Spread the jam on four plates. Put 3 filled apricot halves on each plate. Pour liquid couverture into the freezer bag, cut off a small corner and drizzle the couverture in strips over the dessert.
Mix the cocoa and icing sugar and sieve over the dessert. Serve decorated as desired with lemon balm, slices of lime and raspberries.