01 - Whisk together olive oil, soy sauce, honey, lemon juice, garlic, smoked paprika, cumin, oregano, red pepper flakes if using, salt, and black pepper in a large bowl until thoroughly combined.
02 - Submerge chicken thighs in the marinade, turning to coat each piece completely. Cover the bowl and refrigerate for a minimum of 2 hours, preferably overnight for optimal flavor penetration.
03 - Heat grill, oven, or skillet to medium-high temperature (approximately 375°F to 400°F) to prepare for cooking.
04 - Lift chicken from the bowl, allowing excess marinade to drip off. Discard all used marinade safely.
05 - Place chicken thighs on the preheated cooking surface. Cook for 6 to 7 minutes per side until the internal temperature reaches 165°F and the skin becomes crisp and caramelized.
06 - Transfer cooked chicken to a platter and let rest for 5 minutes to allow juices to redistribute throughout the meat.