Juicy Flank Steak with Smoky Chipotle Mayo

Ingredients

• 1 1/2 pounds flank steak
• 1/4 cup barbecue sauce
• 1 tablespoon lime juice
• 1 teaspoon smoked paprika
• 1/2 teaspoon garlic powder
• 1/2 teaspoon onion powder
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper
• 1/2 cup mayonnaise
• 1 chipotle pepper in adobo sauce, chopped
• 1 tablespoon adobo sauce
• 1/4 teaspoon smoked paprika
• 1/4 teaspoon garlic powder
• 1/4 teaspoon onion powder
• 1/4 teaspoon salt