How to Cook Salmon Fillets Without Overcooking

This guide is for anyone who has paid good money for salmon and ended up with something dry and chalky. You will learn how to buy and prepare fillets, three reliable cooking methods, how to tell when salmon is done, and how to store leftovers safely. Recommended cooking temperatures for fish differ between countries, so check your national food-safety guidance. General information, not professional advice.

Why Salmon Overcooks So Easily

Salmon is a delicate fish with soft muscle and a fairly narrow window between just cooked and overdone. It keeps cooking for a minute or two after it leaves the heat, and a fillet is often thick at one end and thin at the other, so part of it is ready long before the rest. Most dry salmon is the result of three things: too much heat for too long, judging doneness by the outside rather than the centre, and forgetting about carryover cooking.

The good news is that salmon is also forgiving once you know what to look for. Its natural fat helps keep it moist, and with a timer and a simple check you can get consistent results every time.

Buying and Preparing Your Fillets

Fresh salmon should smell clean and mild, like the sea, never sour or strongly fishy. The flesh should look moist and firm, without dry edges or gaps between the flakes. Frozen salmon is a perfectly good choice and is often frozen very soon after catch; thaw it in the fridge overnight rather than on the counter.

• Choose even thickness. Centre-cut fillets about 2.5 cm (1 inch) thick cook most evenly.
• Skin on or off. Skin protects the flesh from direct heat and crisps nicely in a pan. Skinless is fine for baking or poaching.
• Check for pin bones. Run your finger along the fillet. Pull out any small bones with clean tweezers, tugging in the direction they point.
• Dry it well. Pat the fillet thoroughly with kitchen paper. A dry surface browns; a wet one steams.
• Season just before cooking. Salt the flesh side and the skin about 10 to 15 minutes ahead, or right before it goes in the pan.

A quick brine is optional but helps beginners. Dissolve one tablespoon of salt in about 500 ml of cold water, add the fillets and leave them in the fridge for 10 to 15 minutes. Rinse, pat dry and skip extra salt. The brine seasons the fish evenly and reduces the white protein that seeps out during cooking.

Keep raw fish and its juices away from ready-to-eat foods. Use a separate board or wash the board, knife and your hands with hot soapy water after handling it.