I do the daily cooking quest every day. Its the first one I do. Every. Day.
Why o why won't the Delicious Chocolate Cake recipe drop?
For the first long time, I always chose the Crate of Meat as the reward. I didn't have any good cooking recipes for the fish at the time, and the meat is useful for either my own buff food, buff food for sale or donation to guildies, or sometimes useful for future cooking quests (so I don't have to go kill wind serpents and raptors up in Blade's Edge for the Demon Boiled Surprise).
Then I got a bunch of nice fish recipes like the golden fish sticks which are sweet for my healers, so I've been exclusively fishy for the past few weeks.
The google-cached page of WoWHead delicious chocolate cake recipe that I can read from work (ha ha, you mutha fers, just try to keep me down, muwahahaha) seems to indicate it can drop from either the Crate of Meat or the Barrel of Fish. But no matter, because it won't drop for me.
And the funny part is that I don't even want to bake the cake. I just want the stupid recipe.