01 - Combine mango, lime juice, olive oil, honey, garlic, cumin, smoked paprika, sea salt, black pepper, and chili flakes in a blender or food processor. Blend until completely smooth.
02 - Pour 1/4 cup of the blended marinade into a separate small bowl and set aside for basting during grilling.
03 - Place chicken breasts in a large resealable plastic bag or shallow dish. Cover with remaining marinade, ensuring all pieces are evenly coated. Seal or cover and refrigerate for at least 1 hour, or up to 8 hours for enhanced flavor.
04 - Preheat grill to medium-high heat. Lightly oil the grates to prevent sticking.
05 - Remove chicken from marinade, allowing excess to drip off. Discard used marinade. Place chicken on grill and cook for 6 to 8 minutes per side, basting occasionally with reserved marinade, until juices run clear and internal temperature reaches 165°F.
06 - Transfer grilled chicken to a plate, loosely tent with foil, and let rest for 5 minutes to retain juiciness.
07 - Sprinkle with chopped fresh cilantro and serve with lime wedges. Present immediately while hot.