01 -
In a small bowl, whisk together brown sugar, onion powder, chili powder, smoked paprika, granulated garlic, dried oregano, salt, and red pepper flakes until fully combined.
02 -
Place chicken thighs in a large mixing bowl or resealable bag. Sprinkle the prepared seasoning blend over the chicken and toss thoroughly to ensure even coating on all pieces.
03 -
Cover and refrigerate the chicken for at least 4 hours or overnight to allow flavors to deeply infuse.
04 -
Preheat grill to medium heat. Arrange marinated chicken thighs on the grill grate. Cook covered for 6–8 minutes per side, until a thermometer inserted into the thickest portion reads 74°C and the juices run clear.
05 -
Remove chicken from grill and let rest for 5 minutes before serving to retain juiciness.