Pour the milk into a bowl and add the eggs, 50 g (1½ oz) of the sugar and the brandy. Mix well and then strain through a sieve into a jug.
Place the slices of Christmas pudding in a shallow dish and pour over the custard mix. Refrigerate for a minimum of 2 hours. After 1 hour, flip all the slices over to get maximum coverage. Drain the slices on a wire rack set