The basic directions (beat egg, stir in vanilla, etc) are part of the recipe. The courts have ruled that there's need to be substantial content to make it copyrightable. That, along with ads and the need to "drive engagement" is why most recipe sites have long articles around the list of ingredients.
"A recipe is a statement of the ingredients and procedure required for making a dish of food. A mere
listing of ingredients or contents, or a simple set of directions, is uncopyrightable. As a result, the
Office cannot register recipes consisting of a set of ingredients and a process for preparing a dish." https://www.copyright.gov/circs/circ33.pdf
https://www.copyright.gov/help/faq/faq-protect.html
Beyond the recipes themselves, the collection may be copyrighted.
The photos accompanying the recipes are also copyrighted.