I'll be having a dinner party next week for British and Scottish friends who will be in New York on business for a few days. I'd like to serve something a little special, something not easily found at home that might be considered a treat: Cajun Seafood Gumbo, for instance, or Mexican pork stew? Southern Fried Chicken with biscuits, gravy, and collard greens? Or perhaps there's a cut of meat or fish not readily available in the UK that would be especially appreciated. What would YOU want to be served if you were coming?