Steaming is a gentle, fat-free cooking method that keeps the natural moisture in foods. This method uses the steam from a simmering liquid (usually water, seafood broth, or wine) to transfer heat to, and cook, a food. It is an excellent choice for preparing delicate seafood because there is a safe distance between the food and heat source, which helps to protect against drying. And steaming, unlike poaching or boiling, keeps flavorful juices and nutrients inside the seafood, rather than letting them escape into the surrounding cooking liquid.
Many steaming vessels (bamboo steamers, pasta pots with a steaming insert, or pans specifically created for whole fish) are available in stores. Follow the manufacturers instructions for assembling the equipment and keeping the correct level of liquid in the vessel during cooking.
To make your own steamer, find a deep, wide pot and fill it about two inches full of cooking liquid. Placing a few small, heatproof dishes (ramekins or tea cups) in the bottom of the pot and set a wire rack on top. Tightly cover the pot with a lid and bring the liquid to a simmer. Place the food to be steamed either directly on the rack or on a small plate on top of the rack and cover again. This method works especially well for finfish.
For shellfish, such as clams and mussels, try a simpler technique. Bring an inch or less of cooking liquid to a boil in a pan with a tightly fitting lid. Add the shellfish, cover again, and cook until most have opened. Discard any unopened shellfish. This technique may also be used for crabs and lobsters.
Boost the flavor of steamed seafood by simmering ingredients such as lemon juice, white wine, onions, shallots, spices, or fresh herbs in the cooking liquid for a few minutes before steaming. These ingredients will scent the steam and add a subtle, but delicious, flavor directly into the seafood.
Grilling gives a smoky flavor and crisped texture to finfish and shellfish. It works best for meatier, firmer-fleshed finfish cut in to steaks or fillets with skin. However, flakier finfish, skinless fillets, and smaller shellfish (that would otherwise slip through the grill grates) can be grilled using a grill basket. Grill baskets are non-stick wire cageswith a top, bottom, and long removable handlethat hold food firmly in place so that it can easily be flipped or removed from the grill.
Prepare seafood for grilling by very lightly spraying both sides of it with olive oil or vegetable oil (away from direct flames). Spraying with oil rather than brushing or rubbing the oil in with your hands avoids contact with raw seafood to prevent cross-contamination with other foods you may be grilling. Once oiled, season seafood with salt and pepper. Or, marinate the seafood in your favorite combination of juice, herbs, spices and oils. Shake off excess marinade before grilling to avoid flare-ups.
If using a gas grill, begin by preheating it for at least ten minutes on the highest setting with the lid closed. For charcoal grills, allow the fire to burn down so that you can comfortably hold your hand above the coals for only two to three seconds. At the proper cooking temperature, the coals will glow softly and be covered with a thin layer of ash. Next, clean the grate by scraping it with a grill brush then wiping it with a wad of paper towels dipped in a light coating of oil (grasp the paper towels with tongs to avoid burning your fingers). Both a very hot grill and a clean grill grate will help prevent seafood from sticking.
Finfish, large shrimp, and scallops may be placed directly on the grill grates and cooked until opaque. Smaller varieties are easier to turn if placed on water-soaked wooden skewers or in a grill basket. Shellfish, including mussels, clams and oysters, may be placed directly on the grill and cooked until their shells openabout five minutes. Discard any that do not open after cooking. With a little more preparation, whole lobsters and crabs may be grilled, but grilling lobster tails and king crab legs is an easier (and just as delicious) option.
As a general rule, seafood steaks and whole fish will take about 10 minutes to cook for each inch of thickness (measured in depth, not length). Thin fillets will take less time. If fillets have skin, place them skin side down and do not move the fish for at least two minutes to build up a crust that wont stick. If grilling smaller fillets, make a few shallow slashes through the skin, which will keep the fillet from curling as the skin cooks and shrinks.
Microwave ovens work by shaking up the water and fat in food, which in turn, makes heat. Covering food with microwave-safe plastic wrap or putting it in a microwave-safe, covered casserole dish locks in steam. The combination of inside heating and outside steaming cooks items in less time than it would take otherwise.
Microwaving is particularly suited to cooking thin, skinless fillets of fish. Begin by arranging the fish in a single layer in a microwavable dish. Be sure to tuck slim pieces under, or overlap thin edges to ensure even thickness. This will prevent overcooked, tough ends. Moisten the fish with a small amount of seasoned liquid or broth, but do not submerge it completely. Microwave on full power or using the fish setting until the fish is mostly opaque and just begins to flakeabout one and half to five minutes. Allow the fish to stand for a short time after microwaving to complete the cooking process.
This method works best when cooking small portions or when you dont desire a browned exterior.
Many fish and shellfish benefit from a quick soak in a marinade to boost flavor and help retain moisture. Even so, use care when choosing marinade ingredients and limit the seafoods time in the marinade so as not to overwhelm its natural flavor. Usually half an hour is enough time to add flavor to a delicate piece of seafood: less time is needed if you are using a strong acid in the marinade, such as lemon juice, which chemically cooks the food and alters its texture.
Experiment with different marinade ingredients, and gradually increase the amounts added or the time the seafood is kept in the marinade till you achieve a flavor balance you like. Most marinades consist of varying proportions of oil (flavored or flavorless) an acid (white wine, fruit juice, or vinegar) and spices or herbs.
For Asian-inspired marinades, choose soy sauce, scallions or sesame oil as the primary flavoring agents. Marinades with a Southwestern flair might include the flavors of cilantro and lime. Try flavoring marinades with fresh basil and parsley for an Italian twist. No matter which combinations you choose, season lightly with saltyou may find that you prefer less because the seafood is already deeply flavored (and you can always add more salt once the seafood is cooked).
For easy cleanup, marinate seafood in a food-grade plastic baggie with a re-sealable top. Always marinate under refrigeration and throw out used marinade to help prevent food borne illness. Remove excess marinade from seafood before cooking to help prevent flare-ups when grilling or broiling.
Seafood is extremely perishable. Quickly freezing it at the height of freshness (usually when its still on the boat or shortly thereafter) is a successful way to keep the flavor and texture. When purchasing frozen seafood, look for solidly frozen pieces with few ice crystals to ensure they have not thawed and re-frozen at some point before purchase. Keep the seafood frozen until you are ready to use it by storing it in the coldest section of your freezer, on a low shelf towards the back.
When you are ready to use the frozen product, you may safely defrost it in one of the following three ways: in the refrigerator, under cool running water, or in the microwave.
Plan at least a day ahead if you choose to defrost in the refrigerator. It will take about 24 hours to defrost a bulky frozen item, or several pieces of food that have been frozen together. Place frozen seafood in a clean container to catch the liquid released from the product as it thaws. If the frozen seafood is not already wrapped in plastic, cover the top lightly with plastic wrap to protect it from coming in to contact with other foods in the refrigerator. Place the container on a low shelf and defrost slowly over a day. After thawing, remove any liquid that has collected in the packaging and use within a day for optimal freshness and safety.
Cool Water Thawing
Use this method when you have less time, but are able to more closely watch the frozen seafood. Begin by placing the food in a leak-proof plastic bag (if it is not in one already). Submerge the seafood in cold tap water and change the water every thirty minutes until the food has defrosted. Do not try to speed the process by defrosting in hot water because this will encourage bacteria on the food to multiply. Cook seafood thawed under cold water immediately after thawing.
Follow the manufacturers instructions for choosing the appropriate microwave defrost setting and defrost until the food is cool and pliable. Be careful not to overheatthis will start the cooking process. Cook seafood that has been microwave-defrosted immediately after thawing.