01 - Combine mango, olive oil, lime juice, honey, garlic, ginger, chili flakes, salt, and black pepper in a blender. Process until completely smooth and emulsified.
02 - Transfer 1/4 cup of the blended marinade to a small separate container. Cover and refrigerate for brushing and serving.
03 - Place chicken breasts in a large resealable plastic bag or shallow glass dish. Pour remaining marinade over the chicken, turning to coat all pieces evenly. Seal and refrigerate for 1 hour, or overnight for maximum flavor penetration.
04 - Heat grill to medium-high temperature (400°F). Lightly brush grates with oil to prevent sticking.
05 - Remove chicken from marinade, allowing excess to drip off. Discard used marinade. Place chicken on preheated grill and cook for 6 to 8 minutes per side, brushing with reserved marinade during the final 2 minutes. Internal temperature should reach 165°F.
06 - Transfer chicken to a cutting board and let rest for 5 minutes to redistribute juices. Slice crosswise and sprinkle with fresh cilantro. Serve immediately with lime wedges.