Head and tail may or may not be removed, according to size of fish and manner of cooking. Small fish are generally served with head and tail left on.
To Skin a Fish. With sharp knife remove fins along the back and cut off a narrow strip of skin the entire length of back. Loosen skin on one side from bony part of gills, and being once started, if fish is fresh, it may be readily drawn off; if flesh is soft do not work too quickly, as it will be badly torn. By allowing knife to closely follow skin this may be avoided. After removing skin from one side, turn fish and skin the other side.
To Bone a Fish. Clean and skin before boning. Beginning at the tail, run a sharp knife under flesh close to backbone, and with knife follow bone (making as clean a cut as possible) its entire length, thus accomplishing the removal of one-half the flesh; turn, and remove flesh from other side. Pick out with fingers any small bones that may remain. Cod, haddock, halibut, and whitefish are easily and frequently boned; flounders and smelts occasionally.
To Fillet Fish. Clean, skin, and bone. A piece of fish, large or small, freed from skin and bones, is known as a fillet. Halibut, cut in three-fourths inch slices, is more often cut in fillets than any kind of fish, and fillets are frequently rolled. When flounder is cut in fillets it is served under the name of fillet of sole. Sole found in English waters is much esteemed, and flounder is our nearest approach to it.
WAYS OF COOKING FISH
To Cook Fish in Boiling Water. Small cod, haddock, or cusk are cooked whole in enough boiling water to cover, to which is added salt and lemon juice or vinegar. Salt gives flavor; lemon juice or vinegar keeps the flesh white. A long fish-kettle containing a rack on which to place fish is useful but rather expensive. In place of fish-kettle, if the fish is not too large to be coiled in it, a frying-basket may be used placed in any kettle.
Large fish are cut in thick pieces for boiling, containing the number of pounds required. Examples: salmon and halibut.
Pieces cut from large fish for boiling should be cleaned and tied in a piece of cheese-cloth to prevent scum being deposited on the fish. If skin is not removed before serving, scald the dark skin and scrape to remove coloring; this may be easily accomplished by holding fish on two forks, and lowering into boiling water the part covered with black skin; then remove and scrape. Time required for boiling fish depends on extent of surface exposed to water. Consult Time Table for Boiling, which will serve as a guide. The fish is cooked when flesh leaves the bone, no matter how long the time.
Boiled Mackerel, garnished with Potato Balls, Cucumber Ribbons Slices of Lemon cut in fancy shapes, and Parsley.—Page [161].