We did, in fact, once get served with the type of Nockerln that Jassy-50 described. This was at a country restaurant recommended by szg south of the airport in Wals. It was triple peaked but the flavor did not impress any of us and we were not about to order it again. The example at Stieglkeller did nothing to change our opinions about its virtues.
I am waiting on violist's report on the Sunday evening concert (on which we completely agreed about the music) and about our peregrinations down to and across the river to the Getreidegasse where we found the restaurant Zum Eulenspieglel. He and I ended up at different tables and IMO the geist was completely different at each. I am interested in hearing his take on that evening's late stop so that I can describe the table at which I found myself, in the company of four delightful women.