Prep the drumsticks: Pat the chicken very dry with paper towels. Dry skin is key to crispiness.
Mix the seasoning: In a small bowl, combine salt, pepper, garlic powder, onion powder, smoked paprika, baking powder, and cayenne if using.
Coat the chicken: Toss the drumsticks with olive oil, then sprinkle the seasoning all over. Rub it in so every surface is covered.
Preheat the air fryer: Set to 400°F (200°C) for 3–5 minutes.
A hot basket helps the skin crisp right away.
Arrange in the basket: Place drumsticks in a single layer with space between them. Don’t crowd—air needs to circulate.
Cook: Air fry at 400°F (200°C) for 10 minutes. Flip the drumsticks, then cook another 10–12 minutes, until the skin is browned and crackly.
Check doneness: Internal temperature should reach 165°F (74°C) at the thickest part, avoiding the bone.
If needed, cook 2–4 minutes more.
Rest and serve: Let the chicken rest 3–5 minutes. Finish with a squeeze of lemon, a drizzle of honey, or hot sauce, if you like.