Buckling? if that is anything like scratchings it is banned under the BSE (Offal) rules. You can get the "so called" scratchings which experts (the people selling it) will assure you they are scratchings but pig skin was only ever a small part of scratchings because traditionally they sold the skin for hide and rendered any unsold bits for lard. The residue left they sold in pubs, fed to horses, sold in pubs and banned (in chronological order). But pigskin (cooked) was always called crackling or real leather (uncooked).

No comfort there anymore.

Now I might have nominated Treacle (that's the black stuff we now call Black Treacle" not the syrup what is gloden and should ideally be referred to as Golden Syrup)

However does an aphrodisiac qualify as comfort food?