Blackened Catfish

Name: Blackened Catfish
Ingredients: For the Blackening Spice Mixture:; 4 tablespoons paprika; 1 1/2 tablespoons salt; 1 tablespoon granulated garlic; 1 tablespoon onion powder; 1 tablespoon black pepper; 1/2 tablespoon white pepper; 1/2 tablespoon cayenne pepper; 1/2 tablespoon dried oregano; 1/2 tablespoon dried basil; 1 teaspoon dried thyme; For the Catfish:; 4 (5 ounce) catfish fillets (skinless); 3/4 teaspoon kosher salt; 1 tablespoon olive oil; 2 tablespoons unsalted butter; For Garnish:; 1/4 cup fresh parsley (chopped); Lemon wedges