Preheat oven to 425°F (218°C). Line a baking sheet with foil and place a wire rack on top. Lightly grease the rack with cooking spray.
Pat the chicken wings dry with paper towels to remove excess moisture. This helps them crisp up better in the oven.
In a large bowl, toss the wings with olive oil, ensuring they are well coated.
In a separate bowl, mix baking powder, salt, black pepper, garlic powder, onion powder, smoked paprika, and cayenne pepper (if using).
Sprinkle the seasoning mix over the wings and toss until evenly coated.
Arrange the wings in a single layer on the wire rack, making sure they are not touching.
Bake for 45 minutes, flipping the wings halfway through, until they are golden brown and crispy.
If desired, toss the wings in your favorite sauce before serving. Serve hot with dipping sauces of choice.