Begin by patting the salmon fillets dry. Generously season them with salt, pepper, paprika, and blackening seasoning, if using. Set aside.
Adjust your oven rack to the middle position and preheat the broiler to prevent burning the sauce.
In a large oven-safe skillet, melt butter with olive oil over medium-high heat. Stir in the garlic, soy sauce, water, honey, sriracha, and lemon juice, allowing the mixture to cook for about 30 seconds until heated through.
Place the salmon fillets skin-side down in the skillet, if the fillets have skin. Cook for approximately 3 minutes, frequently spooning the sauce from the skillet over the top of the salmon as it cooks.
Transfer the skillet to the oven and broil for 5-6 minutes, basting the salmon once during broiling. Cook until the salmon is caramelized and reaches your preferred doneness.
Garnish with freshly minced parsley if desired. Serve immediately and enjoy!