In the courtyard of the Städel, entered from Holbeinstrasse, this is an elegant choice for dining on a carefully crafted cuisine. Its decor has been likened to dining in a jewel box with a backdrop of paintings by old masters. The service is among the most efficient in town. Marvelously fresh ingredients are cooked with admirable care and precision. You might begin with a mix of Kombucha tea and prosecco on ice before digging into the well-chosen array of poultry, fish, and meat dishes. The range is from the most tender of Argentine filet mignon to grilled Canadian lobster in vanilla foam.