I found this...I have not tried it...
There are 11 herbs and spices in KFC total. Unless, of course, KFC lies about this and there are in fact 10, or 12, or any other number… which would be a pretty good way to keep it a secret if everyone works on the assumption that there are 11, which I am now going to do.
My assumptions also are that the ingredients will consist entirely of the commonly available ones, which is good because that eliminates about 80% of the possible herbs and spices in one fell swoop. My reasons are that firstly, it was made by some guy on his own in the middle of Kentucky, I doubt he had access to the more exotic herbs and spices the world has to offer. Secondly, with an obvious need to keep costs down, I believe KFC must use the cheapest, nastiest ingredients possible.
Based on this, here is my best guess at the 11 ingredients, in no particular order.
1. Salt – A given. It’s the main way of imparting flavour to the coating. Okay, being a mineral it’s not technically a herb or a spice but hey.
2+3. Pepper & Chile Powder – Also no brainers.
4. Turmeric – In my experimentations so far, Turmeric is the key spice for getting the right colour. It’s also a powerful flavour in it’s own right, but not one that really shouts at you when eating KFC, so a neutralising ingredient must be found. I expect this will be…
5. Cinnamon.
6. Paprika. One of those spices that doesn’t really seem to impact food in an overtly noticeable way – it’s things like this that will require a lot of experimentation to get the levels right.
7. Garlic, in the form of garlic powder. Another easy choice since it’s so bountiful and is a great way to instantly impart flavour to a dish.
8. Mustard. Again contributes to colour, and spicyness without being too ‘hot’ (remember I’m after original recipe, not hot wing recipe).
9. Coriander – Cheap, commonly available.
10. Oregano – see above.
11. Tarragon – because it goes so well with chicken.