marshmallows, biscuits and mini doughnuts, to serve
Bring the cream to the boil in a small, heavy-based saucepan. Remove from the heat and stir in the liqueur, if using, and the chocolate until melted. Transfer to a warmed serving bowl or fondue pot, if liked.
Arrange the marshmallows, biscuits and mini doughnuts on a serving plate, spear them on long forks and dip them into the warm chocolate.