Preheat your oven to 400°F (200°C) and prepare a wire rack on a baking sheet.
Pat the drumsticks dry with paper towels.
In one shallow dish, whisk together the egg and buttermilk. In another, combine the flour and seasonings.
Dredge each drumstick in the egg wash, then roll in the seasoned flour.
Place the coated drumsticks on the wire rack, ensuring they are not touching.
Spray each drumstick with olive oil spray.
Bake for 30 minutes, then flip each drumstick, spritz with oil, and bake for another 20-30 minutes until golden brown and cooked through.
Let them rest for 5 minutes before serving.
