Recipes are. But the ingredient lists are not. The description are copyrightable as any other written work.
“[The] recipes’ directions for preparing the assorted dishes fall squarely within the class of subject matter specifically excluded from copyright protection by 17 U.S.C. § 102(b).”
From : http://www.pddoc.com/copyright/publications_v_meredith.htm
“Copyright law does not protect recipes that are mere listings of ingredients….. Copyright protection may, however, extend to substantial literary expression—a description, explanation, or illustration, for example—that accompanies a recipe or formula or to a combination of recipes, as in a cookbook.”[0]
Clearly a cooking show or in my opinion a video showing the preparation of a dish in context and with commentary is protectable.
But all of the opinion on the internet matters about as much as wind striking the face of a mountain compared to an actual litigation.