Grilled porterhouse steak with roasted garlic cajun marinade recipe

Ingredients

• 2 tablespoons jarred roasted garlic
• 1 tablespoon deli mustard
• 2 tablespoons red wine vinegar
• 1/2 teaspoon Cajun seasoning
• 1/2 teaspoon dried basil
• 1/2 teaspoon salt
• 1/2 teaspoon black pepper
• 1/4 cup olive oil
• 1 Porterhouse steak (or more)