01 -
Pat salmon fillets dry thoroughly with paper towels to ensure seasoning adheres and a proper sear later.
02 -
Generously season the salmon with kosher salt and black pepper. For skin-on fillets, season only the flesh side; for skinless, season both sides.
03 -
Place each fillet into a vacuum or resealable gallon-size bag. Drizzle about 1/2 tablespoon olive oil over each, layer lemon slices on top, tuck a dill sprig underneath each fillet, and divide minced garlic evenly if using. Add a small pat of butter per bag for extra richness if desired.
04 -
Vacuum seal the bags according to device instructions or use the water displacement method for zip-top bags by slowly submerging to expel air before sealing.
05 -
Fill a large pot or container with water and securely attach a sous vide immersion circulator.
06 -
Preheat the water to 120°F (49°C) for medium-rare, 130°F (54°C) for medium, or 140°F (60°C) for medium-well doneness.
07 -
Submerge sealed bags fully in the preheated water bath. Cook for 30 minutes for 1-inch thick fillets, extending up to 45 minutes for thicker pieces.
08 -
Heat a cast iron or regular skillet over medium-high heat and add 1 tablespoon olive oil, ensuring the pan is hot before adding salmon.
09 -
Remove fillets from bags, discard lemon and dill, and pat dry thoroughly. Place salmon skin-side down if applicable and sear for 2-3 minutes until skin is crisp; for skinless fillets, sear 1-2 minutes per side until golden brown.
10 -
During the last minute of searing, add 1 tablespoon butter and baste salmon by spooning melted butter over the fillets.
11 -
Transfer salmon to plates and serve immediately, garnished with fresh dill or lemon wedges if desired.