Irish Bacon is an American term, because in Ireland, there's no such thing as "one kind" of bacon. There's turkey bacon (smoked and unsmoked,) smoked bacon, hickory smoked bacon, maple flavoured bacon, streaky bacon -- in short, practically every range of bacon that might be available in the UK, North America, Australia and New Zealand.
What Americans call "Irish Bacon" would in Ireland be referred to something like "traditional back bacon." It's cured (e.g. brined) pork, often cut from the eye of loin. The fat isn't trimmed off the edges, as it is in what Americans call "Canadian" bacon (aka back bacon in Canada.) It may be smoked or unsmoked.
Americans may also use the term Irish Bacon to describe a whole raw piece of bacon -- as in, one that is brined, but not yet sliced up -- that is cooked whole, as in the Irish dish of "cabbage and bacon."
Irish Bacon is the same as bacon in the UK.
BaconAyrshire Middle Bacon; Bacon and Cheese Clafoutis Recipe; Bacon Bits; Bacon Drippings; Bacon Press; Bacon; Canadian Bacon; Cottage Bacon; Guanciale; Gypsy Bacon; Irish Bacon; Lance Corporal Bacon; Pancetta; Rashers; Rolled Bacon; Turkey Bacon; Ulster Roll
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