Rick201m - Thanks for bumping this up. I love this stuff and buy it from a German sausage shop near my house in Sarasota, known as Geier's Sausage.
I, like you, have never been able to find a recipe/method for making it.
I'm looking at the label now and the ingredients are listed as....
Pork
Salt
Sodium Nitrite
Sodium Erythorbate
Dextrose
Doesn't tell you much does it. I guess it's all in the method of preparation by the individual sausage maker, as mentioned upthread
I also just noticed the price for the first time - $12.09/lb. Must have been one of the items I bought on the day that they were having their free German beer sampling.