When we cook meats, we like to use all of what we cook. So after we’ve braised ham hocks, we like to nick the skin and turn it into crackling/scratchings. Confit-ing some duck legs, or poaching a chicken? Grab that skin, stretch it out and bake it. Not only do you have something that can be labelled Coq Scratchings or Fowl Scratchings and illicit a snigger, but you’ll have something salty and delicious that will give you all the texture and crunch you need in an otherwise soft sandwich.
This is not a recipe as such.