01 - In a large bowl, whisk together lime juice, olive oil, cilantro, garlic, cumin, chili powder, paprika, salt, and pepper until thoroughly combined.
02 - Add chicken thighs to the marinade, turning to coat all surfaces evenly. Cover bowl and refrigerate for at least 30 minutes, up to 4 hours for optimal flavor absorption.
03 - Preheat grill to medium-high heat, approximately 400°F.
04 - Remove chicken from marinade, allowing excess liquid to drip off. Discard used marinade.
05 - Place chicken on preheated grill. Cook for 6-8 minutes per side, until nicely charred and internal temperature reaches 165°F.
06 - Transfer grilled chicken to a serving platter. Cover loosely with foil and let rest for 5 minutes to allow juices to redistribute.
07 - Serve immediately, garnished with additional chopped cilantro and fresh lime wedges if desired.