01 - Combine chopped chilies, minced garlic, smoked paprika, sweet paprika, dried oregano, dried thyme, olive oil, lemon juice, red wine vinegar, salt, and black pepper in a food processor or blender. Process until a smooth marinade forms.
02 - Arrange chicken thighs in a large bowl or resealable bag and pour over the peri peri marinade. Rub to coat chicken thoroughly. Cover and refrigerate for at least 2 hours, or preferably overnight for optimal flavor penetration.
03 - Preheat grill to medium-high or oven to 400°F (200°C).
04 - Lift chicken from marinade, allowing excess to drip back. Reserve any remaining marinade for basting.
05 - Grill chicken thighs skin-side down for 6 to 7 minutes, then turn and grill the other side for an additional 6 to 7 minutes. Alternatively, roast in oven for 30 to 35 minutes until juices run clear and the internal temperature reaches 165°F (75°C).
06 - Brush chicken periodically with reserved marinade while cooking for enhanced flavor and moisture.
07 - Allow chicken to rest for 5 minutes before serving. Garnish with lemon wedges and fresh chopped herbs.