If you look on Wikipedia under Poitín you'll find a bit of info. You can also google it as I found some recipes - can't say I'd recommend it though.... it has a dangerous reputation!!!

My OH said his gran used to own a pub and used to have some for cleaning with

She told him not to EVER touch it.... and if he did that she wouldn't have to bother coming after him to kill him as the drink would do it to him...

Needless to say he never ever tried it...!!!