My Christmas Pudding (I'm British) is being made this month! It is a suet (cow kidney fat) steamed pudding containing tons of candied fruits and various dried grapes. The whole thing is then 'marinated' for want of a better word in Brandy/Rum and left to sit until until Christmas when it is re-steamed, and more brandy goes on before we set it on fire and briefly and drown it in more rum/brandy butter sauce .....
.... it basically ****ing rules ....
Either way here is a recipe that isn't mine but is in the ballpark albeit it with different boozes.
http://www.epicurious.com/recipes/food/views/superb-english-plum-pudding-20010 ... as you can imagine these flavors all merge over the time these puddings mature, so the flavors are a blended. Its not enough just to take the spices, the citrus/rind/fruit flavors are really key and of course whatever tipple you choose as your alcohol backing.
And yes ... if you are between brews and want to work on something ... the puddings ... they need to happen more for everybody. The suet is fantastic, hard kidney fat from cows -- a lot of US butchers don't seem to get it much and/or will sell you bags of any old kind of fat. It has an extremely high melting point so your pudding cooks around it and then it melts leaving lots of little holes for things like brandy to fill.
I wonder if you can take all the fruit, the alchohol, the spices and toss them all together in a bowl and let them sit overnight and let them infuse. It gets quite potent. In sufficient quantities with the right beer on the back you might be able to almost add them in after fermentation and get them to pop a bit. This is guessing ..... otherwise the prominent flavors like cinnamon, allspice .... there is lots of overlap here, it might get tough. You don't need the suet, the flour, any of that just the flavors but it is more than the spices...
I'm totally interested in this if you can't tell ....