Let her finish the entire book first, complete with editing, formating and appetizing photos of the dishes.
It's a valuable and creative project from which she will learn a great deal.
The latest cookbooks usually carry mini-stories of 150 to 600 words about where the recipe was found or how it developed - something that gives a feeling for the author's experiences, values and approach to cooking.
Once ready for publication, consult writers' blog sites and associations for advice on publishing. There are many online.
Or there are many books on self publishing. Get one that is current.
Take care in choosing the printer. Many companies are now charging rip-off rates and providing extremely poor computerized services that make a mess of the book.
To publish a book, the minimum requirement is three identical copies, registered with an ISBN number.
On the back of the title page the copyright notice should state the author's name, date and place, and should specify the details of the copyright. These can be found, standard, in any book.
One is sent to the ISBN, one to the national or local state library, and one is kept for oneself.
After self publishing, it is up to the author to advertise, distribute and sell the book. There are many ways to do this, but it is extremely hard work.
If her cookbook is really good and proves popular, she might attract a good deal from a high ranking publisher.
I recommend avoiding Amazon at all costs. They rarely keep their contractual obligations and rely on authors being too poor to sue.
