Prep the chicken: Pat the drumsticks very dry with paper towels.
Removing moisture is key for ultra-crispy skin.
Preheat the air fryer: Set it to 400°F (200°C) for 3–5 minutes. A hot basket kickstarts browning.
Mix the seasoning: In a small bowl, combine salt, pepper, garlic powder, onion powder, paprika, Italian seasoning, and baking powder. Add cayenne if using.
Oil and coat: Place the chicken in a large bowl.
Drizzle with oil and toss. Sprinkle on the seasoning blend and rub it in so every piece is evenly coated.
Arrange in the basket: Place drumsticks in a single layer, not touching. Work in batches if needed for even airflow.
Air fry: Cook at 400°F (200°C) for 20–24 minutes, flipping halfway.
The skin should be browned and crisp.
Check doneness: Use an instant-read thermometer. Internal temperature should reach at least 165°F (74°C) at the thickest part, not touching bone. For extra-juicy dark meat, 175–185°F (79–85°C) is excellent.
Rest and finish: Let the chicken rest 3–5 minutes.
Squeeze lemon over the top and sprinkle with parsley if you like.