Re Cayenne: never been, but Anthony Bourdain did one of his "No Reservations" in Belfast and visited Cayenne. I've cut and pasted part of an article I found on it for you. The show was excellent and you might be able to find a clip on YouTube.
As for his trip to Ireland, first up is Belfast in Northern Ireland. The Shankhill district to be specific. After checking out the town, he settled in at The Crown Salon for a few pints of Guiness and some traditional Irish pub fare. Tony ordered an Irish Stew and a Beef and Guiness Pie. He comments on Irish Stew that "depending who is making it, it's either the best or worst thing on earth."
For some fine dining in Belfast, Tony ate at the Cayenne Restaurant. Chef Paul Rankin brought out an Oriental Appetizer plate with Lobster-chicken Wontons, Sushi, and other goodies that looked amazing. They discussed the Irish people's dislike of fish. It was funny because they were eating sushi as they were discussing it! But Chef Paul explained how he is trying to raise peoples awareness of new foods. For their main course, Tony ordered Irish beef and the Chef Paul ordered Irish Lamb. Of course Tony had to try both. They must of had to roll him out of there after eating all of that food!