Salmon baked at 400°F (204°C) cooks quickly, with a tender center and lightly browned edges. For a typical 1-inch-thick fillet, plan on 12–15 minutes; thickness matters more than weight, so use a thermometer to confirm it is done.
Ingredients
- 4 skin-on or skinless salmon fillets, about 6 oz (170 g) each, or 24 oz (680 g) total
- 1 tbsp olive oil (15 ml)
- ¾ tsp fine salt (4.5 g)
- ¼ tsp freshly ground black pepper (0.5 g)
- 2 garlic cloves, finely minced (about 6 g)
- 1 medium lemon (about 100 g), finely grated zest from 1 tsp (2 g), 1 tbsp juice (15 ml), and the rest cut into wedges
- 1 tbsp chopped fresh dill (3 g), or chopped parsley if preferred
Instructions
- Heat the oven and prepare the pan. Set a rack in the center of the oven and preheat to 400°F (204°C). Start the oven first, then prepare the salmon while it heats so the preheating time does not extend the recipe. Line a rimmed baking sheet with parchment for easy cleanup, or lightly oil a baking dish.
- Dry and arrange the salmon. Pat the fillets dry with paper towels; removing surface moisture helps the seasoning cling and prevents excess liquid from pooling. Arrange them with a little space between each piece. If the fillets have uneven ends, tuck very thin tails underneath so they are less likely to overcook.
- Season. Stir together the olive oil, salt, pepper, garlic, lemon zest, and lemon juice. Brush or spoon the mixture over the tops and sides of the fillets. Sprinkle the dill over them. If you prefer a milder garlic flavor, leave the garlic out of the oil mixture and scatter it on top instead.
- Bake according to thickness. Put the pan in the hot oven. As a guide, a fillet about ¾ inch (2 cm) thick often takes 9–12 minutes; one about 1 inch (2.5 cm) thick takes 12–15 minutes; and a thick 1½-inch (4 cm) piece can take 15–18 minutes. These are estimates for fillets starting cold from the refrigerator, and oven performance, pan material, and the shape of the fish can shift the timing. Begin checking at the early end of the range rather than relying on the clock alone.
- Check the temperature and rest briefly. Insert an instant-read food thermometer sideways into the thickest part of a fillet, avoiding the pan. The USDA FSIS safe minimum internal temperature for fish is 145°F (63°C), checked with a food thermometer. If it has not reached that temperature, return it to the oven and check again after a minute or two. Rest the cooked salmon for 2 minutes, then serve with lemon wedges. For a typical 1-inch fillet, about 13 minutes baking plus this rest gives the 15-minute cook time in the recipe facts.
Tips
- Choose similar-sized portions. Fillets of roughly the same thickness finish at about the same time. If one piece is much thinner, check it first and transfer it to a plate when it reaches 145°F (63°C), leaving thicker pieces in the oven.
- Use thickness, not the number of fillets, as your timer. Four pieces crowded tightly in a small pan can cook less evenly than four pieces with room around them. Use a larger sheet pan if needed, and avoid stacking or overlapping the fish.
- Keep an eye on lean salmon. Wild salmon and thinner tail portions can dry out more quickly than thick, fatty center cuts. The thermometer is the most reliable guide; start checking early, and do not leave the fish in the oven for extra browning after it is done.
- Make an easy substitution. No dill? Use parsley, chives, or a small amount of dried dill. Dried herbs are more concentrated, so use about 1 tsp (1 g) instead of 1 tbsp fresh. The flavor will be less bright, but the cooking time stays the same.
Serving Suggestions
Serve the fillets warm with the lemon wedges and any flavorful juices from the pan. A simple plate of roasted potatoes, rice, or couscous makes a filling base, while green beans, asparagus, broccoli, or a crisp salad add freshness. For a quick sauce, stir a spoonful of the pan juices into plain yogurt with chopped dill and a little lemon; serve it on the side rather than pouring it over the fish if you want the surface to stay less moist.
If you are serving several people, keep the fillets whole until they reach the table, then let diners remove the skin if they prefer. The skin is easy to leave behind when the salmon is cooked skin-side down, and it can help protect the flesh from direct heat. For a more casual meal, flake the cooked fish over rice or greens just before serving.
Variations
Honey mustard: Replace the olive oil, garlic, and dill mixture with 1 tbsp olive oil (15 ml), 1 tbsp Dijon mustard (15 g), and 2 tsp honey (14 g). Add the lemon zest and salt, then bake as directed. The sweet coating may brown faster, so begin checking the fish at the early end of its time range.
Smoky paprika: Add ½ tsp smoked paprika (1 g) and ¼ tsp onion powder (about 0.5 g) to the original seasoning. This gives the salmon a warmer, savory flavor without changing the oven temperature or the doneness target.
Herb-free lemon pepper: Omit the dill and garlic. Season with the oil, salt, lemon zest, and black pepper, then finish with extra lemon juice at the table. This is a useful option when serving people who prefer a simpler flavor.
Foil packet option: For a softer, more gently steamed texture, place each seasoned fillet on a piece of foil and fold the edges into a sealed packet. Bake at the same temperature and start checking at the usual time, but expect the surface to stay moist rather than brown. Open packets carefully because hot steam escapes.
Storage and Reheating
Refrigerate leftover salmon within 2 hours of cooking, in a shallow airtight container. It keeps for 3–4 days in the refrigerator. If you will not use it within that time, freeze it in a freezer-safe container; for best texture, use it within about 2–3 months. Thaw frozen portions overnight in the refrigerator rather than on the counter.
To reheat, cover the salmon and warm it in a 275°F (135°C) oven until a food thermometer in the center reads 165°F (74°C), the safe temperature for reheated leftovers. The time depends on the size and starting temperature, so begin checking after about 10 minutes. A microwave also works: cover the fish loosely, heat in short intervals, and check the center. Reheated salmon can become dry, so add a teaspoon of water or lemon juice before covering if you like. Cold leftover salmon can also be flaked into a salad or sandwich without reheating.
Frequently Asked Questions
How long does salmon take at 400°F? A 1-inch-thick fillet usually needs about 12–15 minutes at 400°F (204°C). A thinner piece may finish in 9–12 minutes, while a thick piece may need 15–18 minutes. Treat those ranges as estimates and check the thickest part with a thermometer for 145°F (63°C).
Should salmon be covered with foil while baking? It does not need to be covered for this recipe. Baking uncovered allows the top to dry slightly and the edges to brown. Cover it or use a foil packet if you want a softer, steamier texture, but still verify doneness with a thermometer.
Do I need to flip salmon in the oven? No. Place the fillets skin-side down if they have skin and bake without flipping. The hot oven cooks the top while the pan supports the bottom, and turning the fillets can cause the delicate flesh to break apart.
Can I bake salmon straight from frozen? For more even cooking, thaw it in the refrigerator first and pat it dry. If baking from frozen, remove any ice glaze, separate the portions, and expect the cooking time to be longer and less predictable; check the thickest part with a thermometer and continue baking until it reaches 145°F (63°C). Do not use the timing for thawed 1-inch fillets as a guarantee.
How can I tell if salmon is done without a thermometer? A cooked fillet generally looks opaque and separates into flakes when gently pressed with a fork, but those visual signs are less reliable than measuring the center. Color varies by salmon type, and a piece can look done before it reaches a safe temperature. A food thermometer is the best way to confirm 145°F (63°C).
Does salmon need to rest after baking? A brief 2-minute rest is enough. It gives the juices a moment to settle and makes the fillet easier to serve, but it is not a substitute for reaching the USDA FSIS safe minimum temperature of 145°F (63°C) during cooking.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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