Darkbrew Lager (Recipe)
Quantity: 1
Source: Trainer
Price: 3g
Components
Item - Source
1x Dry Yeast - Vendor
1x Noble Hops - Vendor
Locations:
Darnassus: Alegorn
Located on the southwest end of lower level at the Craftmen's Terrace.
Orgrimmar: Arugi
Cooking trainer located inside Borstan's Firepit on the upper level of The Drag.
Stormwind: Stephen Ryback
Located in the basement of the Pig and Whistle Inn in Old Town.
Undercity: Eunice Birch
Located in the Trade Quarter, on the west side across from the bank.
-copy and pasted from google search, i know nothing about WoW so idk if this is the info you are looking for...