Create slits on the surface of your chicken thighs so that the sauce can seep deeper into the chicken as it marinates.
Add half the peri peri sauce to the chicken and massage into the thighs. Cover and marinate in the refrigerator for about 4-6 hours.
Heat a large skillet over medium heat. Add a neutral oil. Once hot, add chicken thighs and cook on both sides until the internal temperature of 165F has been reached. Outside should be slightly crispy and browned.
Coat the chicken thighs with the remaining peri peri sauce and serve with sides of choice.