This Pellet Grill Salmon is buttery and flaky, with a gentle wood-fired smoke that elevates a simple salmon dinner. The fish cooks slowly on the pellet grill while a lemon-garlic herb compound butter melts over the top, creating a built-in sauce that keeps each bite moist and bright.
This method produces grilled salmon with a subtle smoke finish. It works well with a thick center-cut side of Atlantic salmon, steelhead, or any rich salmon fillet. The technique is straightforward enough for a weeknight meal but polished enough for a backyard barbecue or special dinner.
Why This Pellet Grill Salmon Works
Salmon has enough natural fat to hold up to a pellet grill when cooked carefully. The compound butter melts slowly, infusing the fillet with garlic, lemon, and herbs while a mild smoke adds a backyard-grill character without masking the fish. The key is controlling the heat so the center remains tender and the exterior develops gentle flavor.
Choosing how to support the fish on the grill matters. Skin-on fillets are easiest because the skin shields the underside from direct heat and makes the fillet simpler to move. Skinless portions and steelhead are still excellent but benefit from a parchment barrier to prevent sticking and falling apart.
Pro Tips for the Best Pellet Grill Salmon
Use the skin as a shield. Cook skin-on salmon directly on clean, lightly oiled grill grates with the skin side down. The skin protects the flesh and helps the fillet hold together.
Use parchment for skinless fillets. Place skinless fillets or steelhead on parchment paper, then set the parchment directly on the grates so the fish cooks without sticking.
Grill at 350°F. This produces a grilled texture while melting the compound butter and keeping the center moist.
Pull it around 120°F to 125°F. Use an instant-read thermometer at the thickest part of the fillet, then let the salmon rest for five minutes before serving.
Ingredients That Matter
Pick a thick center-cut fillet. A center-cut side of salmon or steelhead cooks evenly and yields consistent doneness. Atlantic salmon is typically rich and forgiving, while steelhead is slightly leaner and needs closer monitoring to avoid drying.
Skin-on is the most grill-friendly option. When your fillet has skin, place it skin-side down on the grill and avoid flipping. For skinless fillets, place them on parchment first so they lift cleanly after cooking.
Use softened butter for the compound butter. Softened butter spreads and melts slowly as the fish cooks. Melted butter poured on before grilling tends to run off before it can flavor the fillet.
Lemon balances the richness. Lemon zest adds concentrated citrus brightness to the butter, and a small squeeze of lemon juice just before serving cuts through the richness.
Fresh herbs lighten the finish. Dill is classic with salmon, while parsley provides a fresh note that complements smoke, garlic, and lemon without overpowering them.
Types of Salmon
Atlantic salmon and steelhead are both excellent choices for this recipe. Atlantic salmon is fattier and more forgiving on the grill, often producing the most buttery flakes. Steelhead, technically a trout but similar to salmon in texture, can be a touch leaner and may require earlier removal from the heat to stay moist.
Wild varieties such as sockeye or coho also work but are typically leaner and thinner. Watch them closely, as thinner wild fillets can transition quickly from moist to dry.
Grilling Salmon With or Without Skin
For skin-on salmon: oil the top of the fillet, season it, dot with compound butter, and place skin-side down on the grill. The skin acts as a protective layer, so the fillet can cook through without flipping.
For skinless salmon or steelhead: set the fish on parchment paper, trim any excess paper so it doesn’t overhang, and place the parchment directly on the grates. The parchment supports the delicate fillet and makes it easy to lift off the grill.
How to Tell When Salmon Is Done
The most reliable method is an instant-read thermometer. Remove the salmon from the grill when the thickest part reaches 120°F to 125°F for moist, medium-rare results. The internal temperature will rise slightly while it rests. If you prefer fully cooked fish, the USDA recommends 145°F, but many chefs find that range too dry for richer fillets.
Visually, the salmon should flake gently when pressed, with the interior still moist. If lots of white albumin is surfacing aggressively, the fish is getting hot quickly and you should check the internal temperature sooner.
Substitutions and Variations
Swap herbs in the compound butter to suit what you have: parsley, chives, basil, tarragon, or thyme will all work. Add red pepper flakes or a pinch of Cajun seasoning for heat. For pellet choices, mild woods like alder, apple, cherry, pecan, or maple complement salmon best. Hickory can be used sparingly or blended with milder pellets to prevent an overpowering smoke flavor.
Storage and Reheating
Refrigerate leftovers in an airtight container for up to three days. Cold salmon is excellent in salads, wraps, rice bowls, or paired with eggs. To reheat, use gentle, low heat—either a low oven covered with foil or short, low-power bursts in the microwave. Adding a touch of butter or lemon before serving helps revive the texture and flavor.
Frequently Asked Questions
Set the pellet grill to 350°F. This level of heat cooks the fish evenly, provides a light smoke flavor, and melts the compound butter into the fillet.
For moist, medium-rare salmon, remove it at 120°F to 125°F. If you prefer salmon fully cooked, aim for 145°F.
Generally no. Cook skin-side down for the entire cook to let the skin protect the fish and keep the fillet intact.
Milder woods such as alder, apple, cherry, pecan, and maple are best. They impart a gentle smoke that complements the compound butter without overpowering the fish.
Yes. Individual portions cook faster than a whole side, so start checking the internal temperature early to prevent overcooking.
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Pellet Grill Salmon
Remove the salmon at 120°F to 125°F for a moist medium-rare finish, then let it rest before serving with lemon wedges and the melted butter from the grill.
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Equipment
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Pellet grill (or equivalent pellet smoker)
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Instant-read thermometer
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Sheet pan and parchment paper (for skinless fillets)
Ingredients
- 3 ½ pound salmon, skin on, pin bones removed, one fillet
- 1 tbsp olive oil
- ½ tsp kosher salt
- ¼ tsp black pepper
- ½ cup salted butter, softened
- 2 cloves garlic, minced
- 1 tbsp fresh dill, chopped
- 1 tbsp fresh parsley, chopped
- 1 tsp lemon zest
- 1 tsp lemon juice
- ¼ tsp kosher salt
- 1 lemon, cut into wedges for serving
Instructions
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Preheat the pellet grill to 350°F and choose a mild-flavored pellet such as alder, apple, or cherry.
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Pat the salmon dry and remove any pin bones. Place it skin-side down on a sheet pan; if skinless, put the fillet on a parchment-lined sheet pan. Brush the top lightly with olive oil.
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Season evenly with kosher salt and black pepper.
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Combine softened butter, minced garlic, chopped dill, chopped parsley, lemon zest, lemon juice, and a pinch of kosher salt until smooth.
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Dollop the compound butter across the top of the fillet, then spread it into an even layer.
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Place the fillet skin-side down on the preheated grill. If using parchment, set it directly on the grates and trim any excess paper. Close the lid and cook without flipping until the thickest part reaches 120°F to 125°F internal temperature, about 18–25 minutes depending on thickness.
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Remove the salmon and let it rest for five minutes so the juices redistribute. Serve with lemon wedges and spoon any pooled butter over the fillet.
Notes
Skin-On Or Skinless Salmon
Skin-on salmon is easiest on the grill. Place it skin-side down on clean, oiled grates to protect the flesh and keep the fillet intact.
Skinless salmon needs support. Set skinless fillets on parchment paper, then place the parchment on the grates. Trim any excess paper that could hang over heat.
Doneness
Pull the salmon at 120°F to 125°F. This yields moist, medium-rare salmon with tender flakes. Carryover heat will raise the temperature slightly as it rests.
Cook longer if you want it fully done. The USDA recommends 145°F for fully cooked fish.
Compound Butter
Use softened, not melted butter. Softened butter spreads and melts gradually while the salmon cooks, flavoring the fish instead of running off.
Spoon melted butter back over the fish. Butter that pools around the salmon after cooking makes a ready-made sauce for serving.
Pellets
Choose mild wood pellets. Alder, apple, cherry, pecan, and maple complement salmon well. Use stronger woods like hickory sparingly or blended with milder options so smoke does not dominate the fish.
Leftovers
Reheat gently. Store leftovers in the refrigerator for up to three days. Rewarm slowly or enjoy cold in salads, wraps, rice bowls, or with eggs.
Nutrition
Carbohydrates: 2 g
Protein: 53 g
Fat: 35 g
Nutrition information is an approximation and should be used as a guide only.
Additional Info
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