From Wiktionary, the free dictionary
liver wing (plural liver wings)
- (cooking) The right wing of a chicken cooked with the chicken's liver nestled into it.
1930, Norman Lindsay, Redheap, Sydney, N.S.W.: Ure Smith, published 1965, →OCLC, page 19:"Then I'll have a bit more stuffing to it. Ay, and the liver wing."