My husband has Irish blood in him — his grandmother grew up in Belfast, Ireland, and married in 1942 to a wonderful Kentucky man. They moved (back) to the States after World War II and took up residence in the small town of Covington, KY, where my husband grew up. His favorites are: Beef Boxty, Irish Stew, and Shepherd's Pie.
My mother's family has direct decendants from Finland — her grandparents came over to the States in the mid-1800's where they settled in a one-horse town, Ashtabula, Ohio. We grew up only knowing one or two Finnish foods. One is a tasty coffee cake that my grandmother would bring whenever she would visit us: Nissua or Nisu. This is best when you slice a piece fresh out of the oven and slathered with butter. Once it's cooled, toasting it is the way to go! Again, make sure to use oleo or your favorite jam/jelly — even apple butter tastes. Oh yes, and don't forget the coffee!!!