Where does promise chicken come from?

"Promise chicken" is not a recognized term or breed of chicken. It's likely a misnomer or a local slang term.

To figure out what you're referring to, could you please provide more context? For example:

* Where did you hear the term "promise chicken"? (A specific store, region, etc.)

* What kind of chicken are you looking for? (Specific breed, cooking style, etc.)

* Is there a specific brand or label associated with it?

With more information, I can help you find the information you're looking for!