Captain Rumsey's Lager

Both reagents can be bought from Colin Field, tavernkeeper in Dwarfen District, Stormwind

This isn't a fluff item at all. It stacks with lures, and it's cheap to make. There are many, many areas where even with 375 fishing you will still need to increase your skill — for example, fishing for furious crawdads.

For all players wanting to complete the recipe Delicious Chocolate Cake, [item=34834], or Darkbrew Lager either for the various achievements or just to 'Do Them All', please see pint-sized [npc=33026] in the Dalaran Sewers near the dueling rings (she is standing on a raised group of barrels near the center wall). She has all of the harder mats to complete them with.

For Horde not able to get to Dalaran yet, access to Silvermoon City is relatively easy enough via zeppelins from Org to UC, and the portal stone in the courtyards outside of UC into Silvermoon's castle. The inn between Murder Row and the Royal Exchange areas has [npc=16442] who sells the goods as well as the rare [item=22775] (rough coords 79.5, 58.5). There are a few others, but more difficult to reach.

For Allies with the same problem, super easy access via Stormwind's MANY vendors of Flask of Port. They are also some of the oldest NPCs in Stormwind's zone, for you clueheads out there. ;^P For Exodar freaks, there is a single seller named [npc=17553] on Bloodmyst Isle (rough coords 55.5, 59.5) in Blood Watch camp.