The title appears before your character's name:
- Chef <Name>
The required achievements are:
As of Patch 3.0.3, the final level of The Northrend Gourmet currently requires more recipes than are currently available in the game.
There are four recipes that were found using data mining websites, or existed in beta, that did not make it to release. The missing recipes are:
Blizzard has acknowledged the issue.
- / Patch 3.0.2 (14-Oct-2008): Added.
- Patch 3.0.8 (2009-01-20): and will be obtainable (undocumented).