Most every black Trini knows black pudding and callaloo, all creole cooking that people think comes from blacks and indians but is really Scotch-Irish food tweaked with caribe seasonings. I'm happy about people doing mission work there :-)
I've had the thought that Roti's were in essense Cornish Pasties.. they serve the same purpose.. made with an East Indian twist..
I know too well about callaloo. It's about the most aesthetically unpleasing food you will ever see.
I'm going there later this month. I'll have to put your theories to the test.
BTW, what kind of doubles do you want when I come back? ;)