For the Creamy Coffee Punch, first soak the raisins in the rum until they have significantly increased in volume.
Then mix sugar, yolks and allspice.
Add the condensed milk and coffee powder, pour in the almost boiling water, stirring constantly, and continue stirring well until you get a creamy consistency.
Strain the rum raisins, letting the rum run into the coffee as you do so.
Pour the Creamy Coffee Punch into hot punch glasses and serve sprinkled with the rum raisins and a pinch of ginger.