From your linked page: > However, where a recipe or formula is accompanied by substantial literary expression in the form of an explanation or directions, or w

From your linked page: > However, where a recipe or formula is accompanied by substantial literary expression in the form of an explanation or directions, or when there is a collection of recipes as in a cookbook, there may be a basis for copyright protection. Emphasis mine. A website full of recipes certainly seems to be a collection in the sense protecting a cookbook.