A few of you have commented on the missing Goldthorn Tea and if you've followed the patch notes, you know that Blizz promised to fix that in 2.3.2. Well we got our 2.3.2 patch on Tuesday, so I'd been planning to visit good old Henry Stern in Razorfen Downs. Last night I finally managed to trek out to the Barrens and wander through the dungeon to find him. Previously if you visited him while the recipe was broken, you only got his "end" dialog. I know this because I went to visit him before they implemented the fix, what can I say... I was a bit confused on when the fix was going to happen :)
But now he actually allows you to learn the recipe and you can go back to him and re-acquire it if you want to do so. I think this recipe is only of interest to the "collector" types out there who want to have every recipe for their profession. It's a run-of-the-mill mana regen drink for mid-level players, nothing special about it. But I know there are folks who are unhappy they lost it, so I can confirm that it's back.