01 - Combine chopped chilies, minced garlic, smoked paprika, sweet paprika, oregano, 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 - Place chicken thighs in a large bowl or resealable bag. Pour marinade over the chicken, ensuring every piece is coated thoroughly. Cover and refrigerate for at least 2 hours, preferably overnight for optimal flavor infusion.
03 - Preheat grill or oven to 400°F. Remove chicken thighs from the marinade, allowing excess marinade to drip off, and reserve leftover marinade.
04 - For grilling: Place chicken skin-side down over medium-high heat. Cook for 6 to 7 minutes, flip, then grill for another 6 to 7 minutes. For roasting: Arrange chicken on a baking tray and roast for 30 to 35 minutes, or until juices run clear and internal temperature reads 165°F.
05 - Brush the chicken occasionally with reserved marinade during cooking to enhance moisture and flavor.
06 - Allow chicken to rest for 5 minutes after cooking. Serve garnished with lemon wedges and chopped fresh cilantro or parsley.