Chopping chocolate. Stir pudding powder, sugar and 100 ml milk until smooth. Bring the remaining milk to the boil in a saucepan and remove from the heat. Stir in the pudding powder, place back on the hot plate and cook for at least 1 minute while stirring.
Take the pot off the stove and fold in the chocolate.
Rinse pudding moulds (130-150 ml content) with cold water. Spread the hot pudding into the moulds and let it cool down. Then chill for at least 4 hours.
Coarsely chop the hazelnuts and roast them in a pan without fat. Take out immediately and let it cool down. Turn out the pudding from the moulds onto a plate or platter. Shortly before serving, let the vanilla ice cream thaw slightly, if necessary stir briefly and
Spray one tuff vanilla ice cream on each pudding and sprinkle with roasted hazelnuts.