In a large bowl, whisk together the olive oil, hot honey, apple cider vinegar, garlic powder, onion powder, smoked paprika, salt, and black pepper until well combined.
Add the chicken thighs to the marinade, ensuring they are fully coated. Cover and refrigerate for at least 1 hour, or up to 4 hours for more flavor.
Preheat the grill to medium-high heat.
Remove the chicken from the marinade and let any excess drip off. Discard the remaining marinade.
Place the chicken on the grill and cook for about 5-7 minutes per side, or until the internal temperature reaches 165°F.
Once cooked, remove the chicken from the grill and let it rest for 5 minutes.
Garnish with chopped parsley before serving.