[Jamestown1630]

I’m not familiar with these, but perhaps someone else is.
You might inquire at one of the British food sites, like britishfood.com. There’s also a place called ‘Parker’s, which appears to be located in NY. They seem to specialize in pies, but I’m not sure if they have what you’re looking for:

https://www.parkersbritishinstitution.com/?gclid=CJTyhIHK9M8CFUFZhgodmrEDlA

[Paisan]

Thanks Jamestown, I will check these sites out...