Meg, my mother used to make it and it was wonderful fried. I don’t remember what she used to make it but I don’t think liver was one of the ingredients. I haven’t heard of it or seen any of it for many years. Seems I may have seen it in the grocery store one time but I can’t be sure.
It was sold in stores and one link I gave(History) is a company that still makes it:
http://www.habbersettscrapple.com/orderform.html