My little mum made two puddings each year, one for Christmas Day and another for New Year's Day. She'd put money in the Christmas Day pudding (silver coins), it was always such a treat to find the money when we were kids. I haven't allowed for re-heating and fridge time in preparation times. I have also guessed on how many serves, it goes a long way when there is so much other food being served. It is lovely cold and keeps for ages in the fridge. I always make this in a pudding basin as it is easy to reheat a basin in a crockpot, it doesn't make the kitchen hot and in Australia our Christmas is usually very hot.