BBQ grilled cajun lobster tails - Le Coup de Grâce

Ingredients

• 1 tablespoon onion powder
• 1 tablespoon garlic powder
• 1 tablespoon sweet smoked paprika
• 1/2 tablespoon dried oregano
• 1/2 tablespoon dried parsley
• 1/2 tablespoon dried thyme
• 1/2 tablespoon dried basil
• 1 teaspoon ground pepper
• 1/2 teaspoon cayenne pepper
• 1/2 teaspoon salt
• 1/2 cup butter + 2 tablespoons
• 3 tablespoons finely chopped yellow onion
• 1/4 cup finely chopped red bell pepper
• 1/4 cup celery finely chopped
• 2 tablespoons white wine
• 6 fresh lobster tails, halved lengthwise
• Chopped fresh chive, for the service