- "Oh, my! Oh, good heavens!! That book you have! It looks like a Cookbook!♥ I could increase my repertoire in an instant with that book. Mario, if it's okay with you... may I have it?"
- — Tayce T.
The Cookbook is a special item in the Paper Mario games. It gives a chef the ability to combine various items, creating new items in the process as a discovered recipe.
It is first seen in Paper Mario, being stolen by a Shy Guy. When Mario gives Gourmet Guy a Cake, he drops the cookbook. When Mario gives the book to Tayce T., she will let Mario cook two Items.
In Paper Mario: The Thousand-Year Door, the cookbook is hidden in the Creepy Steeple, and is the work of the famous chef, Maitre Delish. To obtain this cookbook, Mario must roll into a tube and enter a small hole near the entrance of the inside of the Steeple. It is given to Zess T. during the "Seeking legendary book!" trouble, and from then on, she will be able to cook two items.