Directions for grilling the salmon: Preheat a gas grill over medium-high heat. Rub blackening spice mixture all over salmon. I would also lightly brush both sides of the salmon (including the skin) with a bit of olive oil to prevent sticking. Be sure to also oil your grill a bit! Place salon skin side down first on grill, close grill lid and grill about 6-8 minutes. Carefully flip salmon and cook 6-8 more minutes or until cooked well. Salmon is tricky, but it's best to undercook rather than overcook your filets.
How to make DIY blackening seasoning: In a small bowl mix together the following: 1/2 teaspoon sea salt, 1 teaspoon paprika, 1/2 teaspoon garlic powder, 1/2 teaspoon onion powder, 1/4 teaspoon cayenne pepper, 1/2 teaspoon black pepper, 1/4 teaspoon dried thyme, 1/2 teaspoon dried oregano, 1/2 teaspoon chili powder (leave out the cayenne if you don't like spice). Rub all over salmon and then continue following recipe instructions.