Spain-based foodmaker, Aceites Olimpo, S.A. is now offering Morcillas Fritas en Aceite (Fried Pork Blood Sausages In Oil).
Labeling says that it's made with pig blood and pork fat. One look at how black these weenies are, and I don't doubt it one bit. Obviously not kosher.
There's no other meat in it, however the ingredients list says "vegetal protein", so aside from pork blood and fat, there's not much more to it!