Probably not. No matter how new a formula (a.k.a. recipe) may be, if it simply comprises a combination of ingredients mixed together to form a new and unique dish, it is not likely to be copyrightable. And, once published, even if the recipe contains additional descriptions or commentary or similar copyrightable expressive content, nothing would actually prevent someone from making the dish.
Consider an example of the brand-new restaurant, whose chefs for have worked together to create a very unique and unusual menu for their customers. After several months, one chef leaves to start a new restaurant – and publishes a cookbook that contains many of the recipes he co-developed with his former co-owner.
Is this infringement?