01 - Preheat oven to 400°F. Line a baking sheet with parchment paper or lightly grease with cooking spray.
02 - In a small bowl, whisk together melted butter, olive oil, lemon juice, Worcestershire sauce, parsley, smoked paprika, garlic powder, onion powder, salt, pepper, thyme, and brown sugar until thoroughly combined.
03 - Pat salmon fillets completely dry with paper towels to remove excess moisture. Arrange on prepared baking sheet, skin side down if using skin-on fillets.
04 - Brush each salmon fillet generously with the butter-lemon mixture, ensuring complete coverage on all sides.
05 - Bake in preheated oven for 12-15 minutes, or until salmon flakes easily with a fork and reaches internal temperature of 145°F.
06 - Switch oven to broil setting for the final 1-2 minutes to achieve a lightly caramelized, restaurant-style finish. Watch closely to prevent burning.
07 - Serve immediately, garnished with fresh lemon wedges and additional chopped parsley if desired.