crack ‧ ling /ˈkræklɪŋ/ BrE AmE noun
1 . [singular, uncountable] the sound made by something when it crackles:
There was silence except for the crackling of the fire.
2 . [uncountable] British English the hard skin on a piece of pig meat when it has been cooked for a long time
3 . cracklings [plural] American English pieces of skin, usually from a pig or chicken, that have been cooked in hot oil and are eaten cold