That is an interesting recipe, another "extended" sausage. I find it fasinating that even within the art of sausages, which are made with generally the cheapest cuts and off-cuts of meat, there are sausages that are streched even further by the use of even cheaper fillers. I'm sure that many of these recipes were born of poverty, yet they became part of a culture's cusine and show up at holidays even in times of abundance. This is not in any way to downplay their often excellent taste and texture. The British have a fondness for the "Banger" though the breadcrumb component has been greatly reduced. Germans have Grutzewurst, the Scots have Haggis, the Swedish have potato sausages and the Cajuns of Louisana have white Boudin. Grisell posted a similar sausage here:
http://forum.sausagemaking.org/viewtopic.php?t=5813
I made Medisterpolse with my brother last weekend, which calls for a cup of pork stock, and pointed out to him that the stock would be traditionally made from the bones and trimings from the sausage meat. There is a neat economy to making sausages. Somehow making them at Christmas seems to ground me in the frenzy of consumerism. Apologies for the short essay.
Fashionably late will be stylishly hungry.