Hi Tom
Corned Beef is really salt beef. It was made and distributed in Eire 17th and 18th Century mainly, and it travelled a long long way. That is why you find it in America. The best way to do this a to get a well trimmed Flank of beef and proceed to salt and cure the meat with a dry salt/spice mix for about 10 days. The Corned name refers to the conical shaped salt used on the dish. It is a great dish for a large number of people as it keeps well in the fridge for at least a week. I have a recipe somewhere which I did years ago one Christmas as an evening cold table dish. The meat which is shredded and packing a well flavoured jellied stock is excellent cold and can be reheated to make a classic hash!
If you are interested, I will try to find the recipe, but it may take me a day or two, have not go this one on the computer, still on old fashioned paper.
Hope that helps.
David 