On stir-up Sunday, grease the pudding basin liberally with butter.
Place a small disc of baking paper at the bottom of the basin. This helps to ensure the pudding turns out without sticking.
Place the ingredients, in the order given in the ingredients list, in the large mixing bowl and stir thoroughly after each addition.
Give it all a final stir and don’t forget to make a wish! If you want to place a coin or trinket in the pudding, make sure it’s wrapped tightly in baking paper.
Pack the mixture firmly into the pudding bowl but don’t fill to the top – leave 5mm space.
Cover the pudding with a disc of baking paper.
Make a pleat in a piece of kitchen foil and cover the basin with it, ensuring that the pleat is placed at the centre of the basin. Secure the foil with string tied under the rim of the basin, making sure you create a ‘handle’ with which you can remove the pudding from the hot water.
Place the pudding in the large-lidded saucepan and fill with boiling water two thirds up the sides of the pudding basin. Cover the saucepan and steam for 3 hours making sure you check the level of the water and top up from the kettle if necessary.
Remove from the saucepan and untie the foil cover.
Allow to cool to room temperature. Do not remove from the basin.
Make a new baking paper disc to cover the pudding and wrap the pudding, basin and all, with a couple of layers of kitchen foil. Place in a cool, dark cupboard until Christmas Day.
On Christmas Day repeat step 7 and 8 but this time boil for 1 hour.
About 20 minutes before you want to serve the pudding make the rum sauce. Place the butter in the small saucepan and melt. Once foaming, add the flour and whisk in thoroughly. Cook through for a few minutes.
Slowly pour in the milk a little at a time, whisking thoroughly between each addition. The consistency should resemble double cream.
Add the sugar and rum and stir in.
Keep stirring until you’re ready to serve. Pour into a jug or sauce boat.
Remove the pudding from the saucepan and untie the foil cover. Turn the pudding out onto a serving dish immediately.
Place brandy in a ladle and heat gently over the hob for a minute. Pour over the pudding and set alight.
Carry the flaming pudding to your excited family and guests. (If your kitchen is not near where you are eating pour the brandy over the pudding at the dining table and set light to it there.)
Serve with a generous glug of rum sauce.