Any advice on making a servietten knodel? It is a savory German dish made of bread and eggs, rolled into a sausage-shaped log, and then simmered in water. I'm planning on tackling it this weekend and am looking for any "dos and don'ts." I'm especially curious about rolling and cooking it -- it needs to be wrapped and tied tightly in something: plastic wrap? cheese cloth? an impeccably clean kitchen towel?