All you do is combine all the ingredients, except for the brandy, and leave in a dry place covered overnight.
The following day, pre-heat the oven to gas mark ¼, 225°F (120°C). Cover the bowl loosely with foil and place it in the oven for 3 hours, then remove from the oven. let it cool, stirring from time to time. When the mincemeat is cold, stir in the brandy. Keep in sterilized jars for months in the fridge or use straight away.