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- Marshall Welsh & William R. Thibodeaux
- Finch Henry Job Corps Center & Nicholls State University
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Fish and shellfish lend themselves well to moist-heat cooking methods, especially steaming, poaching and simmering. Steaming best preserves the food's natural flavors and cooks without adding fat. Poaching is also popular, especially for fish. Poached fish can be served hot or cold, whole or as steaks, fillets or portions. Boiling, which is actually simmering, is most often associated with crustaceans.
Steaming
Steaming is a very natural way to cook fish and shellfish without adding fats. Fish are steamed by suspending them over a small amount of boiling liquid in a covered pan. The steam trapped in the pan gently cooks the food while preserving its natural flavors and most nutrients. The liquid used to steam fish and shellfish can be water or a court bouillon with herbs, spices, aromatics or wine added to infuse the item with additional flavors. Mussels and clams can be steamed by placing them directly in a pan, adding a small amount of wine or other liquid and covering them. Their shells will hold them above the liquid as they cook. Fish and shellfish can also be steamed by wrapping them in parchment paper together with herbs, vegetables, butters or sauces as accompaniments and baking them in a hot oven. This method of steaming is called en papillote.
Steamed fish and shellfish should be moist and tender. They should have clean and delicate flavors. Any accompaniments or sauces should complement the main item without masking its flavor. Fish and shellfish cooked en papillote should be served piping hot so that the aromatic steam trapped by the paper escapes as the paper is cut open tableside.
Selecting Fish and Shellfish to Steam
Mollusks (for example, clams and mussels), fatty fish (for example, salmon or sea bass) and lean fish (for example, sole) all produce good results when steamed. The portions should be of uniform thickness and no more than 1 inch (2.5 centimeters) thick to promote even cooking.
Seasoning Fish and Shellfish to Be Steamed
Steamed fish and shellfish rely heavily on their natural flavors and often require very little seasoning. Nevertheless, salt, pepper, herbs and spices can be applied directly to the raw food before steaming. Flavored liquids used to steam fish and shellfish will contribute additional flavors. If the liquid is served with the fish or shellfish as a broth or used to make a sauce to accompany the item, it is especially important that the liquid be well seasoned. Lemons, limes and other fruits or vegetables can also be cooked with the fish or shellfish to add flavors. Clams and mussels often do not require additional salt, as the liquor released when they open during cooking is sufficiently salty.
Accompaniments to Steamed Fish and Shellfish
Steamed fish and shellfish are popular partly because they are low in fat. In keeping with this perception, a low or nonfat sauce or a simple squeeze of lemon and steamed fresh vegetables are good accompaniments. If fat is not a concern, then an emulsified butter sauce such as Beurre Blanc or Hollandaise may be a good choice.
Classic New England steamed clams are served with a portion of the steaming liquid; steamed mussels are served with a sauce that is created from the wine and other ingredients used to steam them.
Procedure for Steaming Fish and shellfish
- Portion the fish to an appropriate size. Clean the shellfish.
- Prepare the cooking liquid. Add seasoning and flavoring ingredients as desired and bring to a boil.
- Place the fish or shellfish in the steamer on a rack or in a perforated pan and cover tightly.
- Steam the fish or shellfish until done.
- Serve the fish or shellfish immediately with the steaming liquid or an appropriate sauce.
Poaching
Poaching is a versatile and popular method for cooking fish. Shellfish are rarely poached, however. The exception is squid, which can be quickly poached and chilled for use in salads and other preparations. There are two distinct poaching methods:
The first is the submersion method, in which the fish is completely covered with a liquid, usually a court bouillon, fish stock or fish fumet. It is cooked until just done. The poached fish is then served (either hot or cold) with a sauce sometimes made from a portion of the cooking
liquid but more often made separately. Whole fish (wrapped in cheesecloth to preserve its shape during cooking), tranches and steaks can all be cooked by submersion poaching.
The second method, called shallow poaching, combines poaching and steaming to achieve the desired results. The main item, usually a fillet, tranche or steak, is placed on a bed of aromatic vegetables in enough liquid to come approximately halfway up its sides. The liquid, called a cuisson, is brought to a simmer on the stovetop. The pan is then covered with a piece of buttered parchment paper or a lid, and cooking is completed either on the stovetop or in the oven. Shallow-poached fish is usually served with a sauce made with the reduced cooking liquid. (Sometimes the main item is sautéed lightly before the cooking liquid is added. If so, the cooking method is more accurately braising, as both dry- and moist-heat cooking methods are used.)
Selecting Fish to Poach
Lean white fish such as turbot, bass and sole are excellent for poaching. Some fatty fish such as salmon and trout are also excellent choices.
Seasoning Fish to Be Poached
Fish poached by either submersion or shallow poaching gain all of their seasonings from the liquid in which they are cooked and the sauce with which they are served. Therefore, it is very important to use a properly prepared court bouillon, fish fumet or a good-quality fish stock well- seasoned with vegetables such as shallots, onions or carrots as well as ample herbs, spices and other seasonings. Many poached fish recipes call for wine. When using wine in either the cooking liquid or the sauce, be sure to choose a wine of good quality. Most fish are very delicately flavored, and using poor-quality wine might ruin an otherwise excellent dish. Citrus, especially lemon, is a popular seasoning; lemon juice or zest may be added to the poaching liquid, the sauce or the finished dish.
Accompaniments to Poached Fish
Poached fish cooked by submersion go well with rich sauces such as hollandaise and beurre blanc. If fat is a concern, a better choice may be a vegetable coulis (for example, broccoli or red pepper). Cold poached fish are commonly served with mayonnaise-based sauces such as sauce verte or remoulade. Shallow -poached fish are served with sauces such as a white wine sauce or beurre blanc made from a reduction of the liquids in which the fish were poached. Poached fish are often served with rice or pasta and steamed or boiled vegetables.
Procedure for Poaching fish
- Prepare the cooking liquid. Whole fish should be started in a cold liquid; gradually increasing the liquid's temperature helps preserve the appearance of the fish. Portioned fish should be started in a simmering liquid to preserve their flavor and more accurately estimate cooking time.
- Use a rack to lower the fish into the cooking liquid. Be sure the fish is completely submerged.
- Poach the fish at 175°F- 185°F (79°C--85°C) until done.
- Remove the fish from the poaching liquid, moisten with a portion of the liquid and hold in a warm place for service. Alternatively, remove the fish from the poaching liquid, cover it to prevent drying and allow it to cool, then refrigerate.
- Serve the poached fish with an appropriate sauce.
