Soak the gelatine in cold water. Warm milk and liqueur. Cut marzipan into small cubes and dissolve in the milk while stirring. Squeeze the gelatine and dissolve in the warm marzipan milk. Place in a cold place until the marzipan milk begins to gel
Whip the cream until stiff and allow the sugar to trickle in. First fold 3/4 of the pistachios, then the cream into the gelling cream. Chill for at least 4 hours.
Defrost the raspberries. Put some berries aside. Pass the rest through a sieve and mix with vanilla sugar. Use a tablespoon of marzipan cream dipped in hot water to cut off any cams and immediately place them on plates. Arrange and decorate with sauce, remaining raspberries and pistachios