01 - Combine mango, lime juice, olive oil, honey, garlic, cumin, smoked paprika, salt, black pepper, and chili flakes in a blender or food processor. Blend until completely smooth and creamy.
02 - Measure out 1/4 cup of the blended marinade and transfer to a separate small bowl. Cover and set aside for basting during grilling.
03 - Place chicken breasts in a large resealable plastic bag or shallow dish. Pour the remaining marinade over the chicken, ensuring all pieces are thoroughly coated. Seal and refrigerate for at least 1 hour, up to 8 hours for deeper flavor penetration.
04 - Preheat grill to medium-high heat (approximately 375-400°F). Lightly oil the grates to prevent sticking.
05 - Remove chicken from the marinade, allowing excess liquid to drip off. Discard the used marinade.
06 - Grill chicken for 6-8 minutes per side, brushing occasionally with the reserved marinade. Cook until internal temperature reaches 165°F and juices run clear.
07 - Transfer grilled chicken to a serving plate and tent loosely with aluminum foil. Let rest for 5 minutes to allow juices to redistribute throughout the meat.
08 - Sprinkle chopped fresh cilantro over the chicken and arrange lime wedges alongside. Serve immediately while hot.