Chen's Empty Keg - Part II:

Bring 5 Savannah Lion Tusks, 5 Plainstrider Kidneys, and 1 Thunder Lizard Horn to Brewmaster Drohn in Ratchet.

Brewmaster Drohn: Would you like a taste of Chen's namesake? Ahh, the stormstout is a mighty brew. Chen taught the recipe to my mentor, and my mentor passed it on to me. I'll need you to get me a few things, but I can tell you this: the kick is worth it.

Bring me 5 savannah lion tusks from any savannah lion, 5 plainstrider kidneys from any plainstrider, and 1 thunder lizard horn from any species of thunder lizard. That should do the trick nicely.

You can find these ingredients throughout the Barrens.

Brewmaster Drohn: How's the search going?

Brewmaster Drohn: Haha... I never thought I'd make more of this stuff ever again.

You've stirred in me a great sense of nostalgia, Rawr. Kind of reminds me of the last time I blacked out from too much trogg ale. Thank you. The memories warm my stomach.