This festive mincemeat will last a very long time if kept in an airtight container, so you can make this well in advance of giving.
Sterilise jars with lids by running through the dishwasher, or washing and warming in an oven.
Put all the ingredients in a large bowl and mix thoroughly. Cover with clingfilm and allow flavours to blend overnight. The next day, stir the mincemeat to mix thoroughly, and pot in sterilised jars. Allow the flavours to blend for a couple of days before using.