Where do you find the hidden recipe in cozy background pucca restaurant?

I am sorry, I do not have access to real-world information, including details about fictional restaurants like the "Cozy Background Pucca Restaurant."

Please provide more context or clarify your question. Do you mean:

* A specific video game or TV show? If so, which one?

* A real restaurant with a hidden menu? Please share its location.

Once you provide more information, I might be able to assist you.