we collect it in a container and use it to make "blodpudding" (swedish style bloodsausage). only really worth doing tho if you are doing at least a few chickens at a time. (we use the "english method" as described in "keeping poultry and rabbits on scraps" to kill and then slit the neck to collect the blood--that way its an instant kill.)
its very simple and absolutely delicious:
--blood from three chickens (about half cup)
--1 cup stock
--1 egg
--about 1 cup rye flour (or similar)
--1 1/2 oz melted butter
--salt, pepper, sugar, allspice, ground cloves
mix in a blender on low, pour into a small greased and floured load pan or similar, cover with foil, an bake in a waterbath at 350 for one hour. cool, then refridgerate overnight to set--leave it in the pan for storage is easiest. cut thin slices and fry in hot butter till crispy on the outside. serve as you would breakfast sausage, or on a bed of shredded cabbage with lingonberry jam (traditional, im told).
you can substitute more blood for some of the stock and reduce the amount of flour too, which is more traditional--we just usually have more stock handy than we do blood so we stretch it out...
waste not want not! theres plenty of other stuff to make fertilizer with that isnt as delicious and nurtitious imho...
