We suggest you add them as Notes (give them a category of Recipes). Notes can have bookmarks, checklists (for ingredients, prep steps, for example), photos, etc in addition to text blocks.
Note that you can add shopping items to checklists (once the checklist is converted to a pro checklist). Currently, there is not a way to associate a shopping list with a note. If you create each recipe as a Project, you can add shopping items to it in addition to everything a note has.