Lemon Dill Salmon in Foil
Herb-Butter Salmon Packets with Bright Lemon
Foil-packet cooking locks in moisture while the salmon steams in its own herbed butter bath. The combination of fresh lemon and dill transforms a simple fillet into something surprisingly elegant, and cleanup is practically nonexistent.
There's something deeply satisfying about opening a foil packet and being hit with that first wave of herbed, buttery steam. This cooking method might seem almost too simple to work, but it's actually one of the most reliable ways to guarantee perfectly moist salmon every single time.
The science here is beautiful in its simplicity: the sealed foil creates a mini steam chamber where the salmon gently cooks in its own juices mixed with that fragrant herb butter. No risk of overcooking, no sticking to pans, and absolutely no guesswork about doneness. The lemon juice does double duty — brightening the rich butter while helping to firm up the fish's texture just enough.
What makes this technique particularly brilliant is how it concentrates flavors. Every drop of that garlic-dill butter stays exactly where it should be, basting the salmon as it cooks and creating the most incredible pan juices that you'll want to spoon over everything on your plate.
Ingredients
- ½ cupunsalted butter, melted
- ¼ cupfresh lemon juice
- 1 lemon zest
- 3 clovegarlic cloves, minced fine
- 1 tspdried dill
- kosher salt
- freshly ground black pepper
- 2 lbsalmon fillets, skin-on or skinless
- 2 tbspfresh dill, finely chopped(optional)
Instructions
- Position a rack in the center of your oven and heat to 375°F. Tear off a large sheet of heavy-duty foil and lay it on a rimmed baking sheet — regular foil works too, just use a double layer to prevent tears.
- In a small bowl, whisk together the melted butter, lemon juice, lemon zest, minced garlic, dried dill, and generous pinches of salt and pepper. The mixture should smell bright and herbaceous — taste it and adjust seasoning as needed.
- Place the salmon in the center of your foil, then bring up the sides to create walls around the fish. Pour the butter mixture evenly over the salmon, making sure it pools around the fillets. Bring the foil edges together and crimp tightly to create a sealed packet — no steam should be able to escape.
- Slide the baking sheet into the oven and bake until the salmon flakes easily with a fork and reaches 145°F at the thickest part. Thinner fillets will be done closer to 15 minutes, while thicker center-cut pieces may need the full 20.⏱ 20 min
- Carefully open the foil packet — watch out for the burst of hot steam. Transfer the salmon to plates and spoon over any accumulated buttery juices. Scatter fresh dill on top if using, and serve right away while the fish is still steaming.
Tips & Tricks
- Use heavy-duty foil or double up regular foil — thin spots can tear and let all those precious juices escape during cooking.
- Check the thickest part of your salmon with an instant-read thermometer; it should hit exactly 145°F for that perfect flaky-but-still-moist texture.
- Don't skip the lemon zest — it adds a brightness that plain lemon juice can't match and really makes the dill pop.
- Save those buttery pan juices that collect in the packet; they're incredible drizzled over rice, roasted vegetables, or even crusty bread.
- If your salmon pieces vary in thickness, arrange the thicker portions toward the outside of the packet where they'll get slightly more heat.
Frequently Asked Questions
Can I use frozen salmon for this recipe?
Yes, but thaw it completely first and pat it very dry with paper towels. Frozen salmon tends to release more water as it cooks, which can dilute your herb butter.
What if I don't have fresh dill for garnish?
The dried dill in the butter mixture carries most of the flavor, so you can skip the fresh garnish entirely. Fresh parsley or chives work well as alternatives if you want something green on top.
How do I know when the salmon is done without unwrapping the packet?
Use an instant-read thermometer inserted through the foil into the thickest part of the fish — it should read 145°F. The salmon will also feel firm when gently pressed through the foil.
Can I add vegetables to the same packet?
Absolutely, but choose quick-cooking options like asparagus spears, cherry tomatoes, or thinly sliced zucchini. Add them to the packet with the salmon so everything cooks together.
Will this work on the grill instead of the oven?
Yes, place the sealed packets on medium heat for about the same cooking time. Just make sure your foil seal is extra tight since grill heat can be more uneven.