01 - In a large mixing bowl, combine lime juice, olive oil, cilantro, minced garlic, cumin, chili powder, smoked paprika, kosher salt, and black pepper. Whisk thoroughly to blend the ingredients.
02 - Place chicken thighs in the marinade, turning each piece to ensure even coating. Cover the bowl and refrigerate for a minimum of 30 minutes, or up to 4 hours to enhance flavor.
03 - Preheat a gas or charcoal grill (or grill pan) to medium-high heat, approximately 400°F.
04 - Take the chicken thighs from the marinade, allowing any excess to drip off. Discard remaining marinade.
05 - Arrange the chicken thighs on the preheated grill. Cook for 6 to 8 minutes per side, or until well charred and the internal temperature registers 165°F.
06 - Transfer the grilled thighs to a serving platter, cover loosely with foil, and allow them to rest for 5 minutes before serving.
07 - Optionally, garnish with additional chopped cilantro and lime wedges before serving.