Make up the Dream Topping according to the directions. Whisk up the cream until thick and then whisk it thoroughly into the Dream Topping mixture with the spices, the sugar and the brandy. Put the mixture in a bowl, sprinkle a little ground mace on top and put it in the freezing compartment of the fridge for at least 3 hours.
Dissolve the sugar in the water in a saucepan and boil for 5 minutes. Add the cranberries, do not cover the pan, and boil for about 5 more minutes. Stir in the lemon juice and pass the sauce round hot with the ice cream.