The other day, one of our readers mentioned a rumor that some of the current Cooking recipes would stay yellow between 425 and 450 skill in the new patch. To test this rumor, I copied nine stacks of meat and all my Northern Spices to the PTR to see if I could spot any new trend. My rogue was sitting at 402 Cooking when I started, and had about 18 daily tokens saved up. I knew there were a few vendor recipes that stayed yellow longer than others, Critter Bites and Dragonfin Filet being a couple of them. I cross-referenced WoWHead and purchased as many as I could to see if there were any notable changes.
I started with Blackened Worg Steak (dunno, just random choice) and made 33 of those. At 415 all of my new recipes turned green. From there to 418 I was still getting reasonable skill points, but it dropped off rapidly after that. With my 33 combines I reached 420 in Cooking, a total of 18 skill points. After that I made 10 Mammoth Treats and got to 425, so that was a 50% skill point ratio for me. The skill up rate may be slightly better than it was before, but I suspect it's still just random. There were times where I would get a skill point on every other combine and times where I would go 7-8 combines with no point. Unfortunately it may just be the luck of the draw whether you get your skill points easily or not.
It will take a few more days for me to accrue additional daily tokens to buy a feast recipe. If I notice any new changes with that, I'll be sure to report again :)
For who are interested, the Cooking recipes that stay yellow until 415 are:
Blackened Worg Steak
Spiced Mammoth Treats