Big Cauldron of Battle

The Big Cauldron of Battle was introduced in the World of Warcraft: Cataclysm expansion as a guild reward for alchemists. It functions similar to cauldrons that existed in The Burning Crusade expansion, and is a less expensive way to produce flasks for raiding. This is particularly true for guilds that have also earned Happy Hour. When used, it gives a Flask of Battle.

Source
This item is created with Alchemy (525); taught by Recipe: Big Cauldron of Battle.