Copyright essentially provides no protection for recipes beyond the written form of the recipe. Copyright would make it illegal for someone to reproduce the exact form of the recipe but does not make it illegal for someone to make beer from your recipe. If you want, you can still put a copyright sign on your recipe and put your name next to it.I heard years ago, probably in a similar discussion, that you cannot copyright a single recipe, only a collection of recipes (like a cookbook). Is that true?
Sincerely, your friendly intellectual property attorney.
Edit: I suppose since a single recipe is a process to make a product, it would fit more with patents than copyright (if the recipe was truely innovative).