For the nut pudding dessert, first mix the walnuts with the pudding powder. Prepare the hazelnut pudding according to the instructions and pour into 4 small pudding molds.
Allow to cool and place in the refrigerator for a few hours. Turn the pudding out of the molds, sprinkle each with 2 tablespoons of walnuts, decorate with chocolate sauce and place 1 pysalis in the center of each nut pudding dessert.