Set Ninja Foodi Grill on medium grill setting. Press start and the preheating stage will begin which will take about 10 minutes.
While grill is preheating mix all dry ingredients in a small bowl.
Rinse and pat dry chicken, then put it in a gallon-sized zip-top bag and add vegetable oil. Coat the chicken well.
Add the seasoning mix to the bag, close top, and shake to get all the chicken well coated.
When grill indicates to add food, add the drumsticks in a single layer, spaced slightly apart if possible. Insert thermometer. Close lid and set grill to program Chicken.
When done, remove chicken to a plate and let rest for 5-10 minutes before serving.