Scottish Terrier Keychain

I'm not sure what you mean by "Scottish Terrier keychain" or how it relates to food. Could you please provide more context or clarify your question? I'd be happy to help you with any questions you have, but I need a better understanding of what you're asking about.

Additionally, I'm not aware of any restaurants in the USA that serve a dish called "Scottish Terrier keychain." It's possible that you may have misspoken or misunderstood the name of the dish, or that it's a unique menu item that I'm not familiar with. If you could provide more information or context, I'd be happy to try and help you identify the dish you're thinking of.

If you have any other questions or concerns, please don't hesitate to ask. I'm here to help in any way I can.