Finnan haddie n. (Written also finnan haddock) Haddock cured in peat smoke, originally at Findon, Scotland. The name is also applied to other kinds of smoked haddock.
... Have given up all fish diet. Have given up codfish, weak fish, sole, flounder, shark's fins, bass, trout, herring (dried, kippered, smoked, and fresh), finnan haddie, perch, pike, pickerel, lobster, halibut, and stewed eels. Gross weight now only nine hundred and thirty pounds averdupois. ... — Philo Gubb Correspondence-School Detective • Ellis Parker Butler