Two salmon steaks go into foil packets with melted butter, garlic, and fresh lemon juice, then bake at 400°F for 12 minutes and finish under the broiler for a lightly golden top. The honest reason to make this on a weeknight is cleanup: one sheet of foil, one small bowl, done. It takes about 20 minutes start to finish and works with ingredients most people already have on hand.
Shopping notes
- Salmon steaks vs. fillets: Steaks are often cheaper per pound and hold up well in foil. Fillets work fine — just cut the bake time to 10 minutes for anything under an inch thick.
- Butter: Salted butter works if that’s what you have. Just skip the added salt in the recipe or taste before seasoning.
- Fresh lemon: One large lemon gives you the 3 tablespoons of juice you need and a few slices for the top. Bottled lemon juice is a reasonable backup — use the same amount.
- Parsley: Fresh dill or chives swap in directly. Dried parsley also works in a pinch — use half the amount.
- Red pepper flakes: Completely optional. A small pinch of cayenne or a few drops of hot sauce does the same job if that’s what’s in your pantry.
Before you start
Pull the salmon out of the fridge about 10 minutes before you plan to bake it. Cold fish straight from the fridge cooks unevenly — the edges tighten up and dry out before the centre reaches temperature. While the salmon comes to room temperature, mix the lemon butter sauce and get your foil ready on the baking sheet. That 10-minute window is your prep time, so nothing feels rushed once the oven is hot. An instant-read thermometer is worth using here: 125°F / 52°C in the thickest part means the fish is medium and will carry over slightly under the broiler — that’s exactly where you want it.
Troubleshooting
- The foil packet leaked and the sauce ran onto the pan: The seal wasn’t tight enough. Crimp the edges of the foil firmly — fold them over at least twice on each side. A little pooling on the pan is fine, but a full leak means the salmon steams dry. Next time, double-layer the foil.
- The top didn’t brown under the broiler: Broilers vary a lot. If the salmon looks pale after 2 minutes, give it another 60–90 seconds and watch it closely. Make sure the foil is fully open and the fish is sitting no more than 6 inches from the heating element.
- The salmon tasted bland: Season the fish directly — not just the sauce. A pinch of salt and pepper on each steak before you add the lemon butter makes a real difference. The sauce alone doesn’t penetrate the flesh much in a short bake.
- The fish was dry: It went over temperature. At 400°F, 12 minutes is enough for a 6 oz steak — skip the garnish and extra broil time if your oven runs hot. Check with a thermometer rather than going by time alone.
- The garlic tasted raw and sharp: Minced garlic needs contact with the butter and heat to mellow. Make sure it’s mixed into the melted butter before it goes on the fish, and press the foil packet closed snugly so the steam does its work.
Baked Lemon Butter Salmon in Foil (20 Minutes)
Ingredients
- 2 salmon steaks 6 oz / 170g each
- 1½ tablespoons unsalted butter melted
- 1 clove garlic minced
- 1½ teaspoons fresh parsley chopped
- 3 tablespoons fresh lemon juice about 1 large lemon
- ½ teaspoon salt
- ⅛ teaspoon black pepper
- 1 pinch red pepper flakes optional
Instructions
- Preheat the oven to 400 degrees Fahrenheit.
- Prepare two sheets of aluminium foil, each about 10 to 12 inches wide, and place a salmon steak in the centre of each sheet of foil.
- Mix together the melted butter, garlic, parsley, lemon juice, salt, black pepper, and red pepper flakes (if using), and pour the lemon butter mixture over the salmon steaks.
- Fold the foil up and over the salmon so they’re completely covered and sealed, and place the salmon packets on a baking sheet.
- Bake for 12 minutes.
- Open the foil, so the tops of the salmon steaks are exposed, then broil for 2 minutes.
- Remove the salmon from the oven, spoon some lemon butter over the salmon, and serve.
Nutrition
Frequently asked questions
Can I use frozen salmon?
Yes, but thaw it completely in the fridge overnight before cooking. Baking salmon from frozen leads to uneven cooking — the outside overcooks before the centre is safe to eat.
What can I serve with this?
Rice, roasted potatoes, or steamed green beans all work well and can cook while the salmon bakes. The lemon butter sauce in the foil packet doubles as a light sauce for plain rice.
Can I make this with more than two servings?
Yes — make individual foil packets for each steak rather than one large packet. One large packet traps too much steam and the fish can end up waterlogged rather than tender.
Do I have to use the broiler at the end?
No, you can skip it. The broil step adds a lightly golden top, but the salmon is fully cooked after the 12-minute bake. If your broiler is unreliable or you’re short on time, just skip it — the texture and flavour are still good.
How do I know when the salmon is actually done?
An instant-read thermometer is the most reliable method — you’re looking for 125°F / 52°C at the thickest part after baking, before the broil. If you don’t have one, the flesh should flake easily when pressed gently with a fork and look opaque through most of its thickness.
Can I swap the butter for something else?
Olive oil works as a straight swap and keeps the recipe dairy-free. Use the same amount — 1½ tablespoons — and the lemon and garlic flavours come through just as well.
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