I've just got the Spice Examiner achievement, and the achievement details said "+2 new recipes". The message I got in local chat only told me that I had learned how to make onion sauce.
I'm told that the other recipe I should have received was Whortleberry Jelly, but I already had that one. I even tried cooking up a batch and it didn't tell me I had discovered a new item, confirming my belief that I had made this before.
So, when did I get the Whortleberry Jelly recipe? Should I have received it then? Was my receiving it earlier a bug? If the achievement is only going to give me one new recipe, it shouldn't tease me by saying there are two.