1907 at Mock a. Mock-duck, a piece of pork from which the ‘crackling’ has been removed, baked with a stuffing of sage and onions.
1969 R. DeSola & D. DeSola 154/1 Mock duck, meat, such as pork chops, shoulder of lamb, carved to resemble a duck.
1972 R. Wiebe (1973) 221 It's not a roast... It's mock-duck.