Some of the best nouvelle Austrian cuisine in the city can be found at this small, plainly decorated restaurant near the Börse (the Vienna Stock Exchange). The widely varied menu includes light-as-a-feather fish dishes, such as salmon in a crispy potato crust, as well as hearty but never heavy meat courses. The Zwiebelrostbraten, skirt steak topped with crispy fried onions, is outstanding. Reservations essential.