01 - Combine mango, olive oil, lime juice, honey, garlic, ginger, chili flakes, salt, and black pepper in a blender or food processor. Blend until completely smooth to create a uniform marinade consistency.
02 - Set aside 1/4 cup of the prepared marinade in a separate container. This reserved portion will be used for brushing during grilling and as a finishing sauce.
03 - Place chicken breasts in a large resealable plastic bag or shallow glass dish. Pour the remaining marinade over the chicken, ensuring each piece is thoroughly coated. Seal or cover and refrigerate for at least 1 hour, or overnight for maximum flavor penetration.
04 - Heat grill to medium-high temperature (400°F). Lightly oil the grates with a high-heat oil or paper towel dipped in oil to prevent sticking.
05 - Remove chicken from the marinade, allowing excess liquid to drip off. Discard the used marinade immediately to prevent cross-contamination.
06 - Place chicken on the preheated grill. Cook for 6 to 8 minutes per side, reaching an internal temperature of 165°F. During the final 2 minutes of cooking, brush the reserved marinade over the chicken for a glazed finish.
07 - Transfer grilled chicken to a clean cutting board and let rest for 5 minutes to allow juices to redistribute. Slice crosswise and sprinkle generously with chopped fresh cilantro.
08 - Arrange chicken on serving plates and accompany with fresh lime wedges for squeezing over the top.