You have to add milk or cream and sugar to get the most out of it. So next time, when you're visiting Finland, be sure to ask for some mämmi! ;)
While mämmi looks more like dark diarrhea, mustamakkara looks much more like a proper, long firm turd when your stomach is ok. So whichever look you prefer.
Black sausage is best served with cowberry (=puolukka) jam, which has a very tart flavor.
I can eat kaszanka all day , erry day.