I find that the complexity of food needs to be raised more. Pickling, Spices and Stuffings were a good first step. But it's not enough.
Now we need to consider the application of spices onto ingredients, like creating truffled butter or herb butter by applying spices onto butter and other ingredients, which will then alter the outcomes of food even further.
A good complexity level ought to be reached only once even an AI bot can not, in finite time, figure out all the possible combination paths of food to find out which recipes are good and which aren't.