Use a sharp knife and make one cut along the bone of each drumstick.
Place a halved garlic clove in each of the drumsticks, pressing it into the meat through the slit.
Rub peri peri spice into the exposed parts of meat, and sprinkle some onto the skin if you have extra. Cover the chicken and leave it to marinade for 20 minutes to 2 hours.
Braai the drumsticks over medium coals for about 10 to 15 minutes, turning regularly.