Whip the cream until stiff and add the quark. Mix well with the 3 sachets of vanilla sugar. If you want, you can stir chocolate sprinkles into the mass.
Line the bottom of 4 dessert glasses with a few mandarins, sprinkle with chocolate sprinkles if necessary. Spread the quark cream on top and sprinkle with chocolate sprinkles. Spread a few more mandarins on top as a decoration.