Preheat your oven to 425 degrees Fahrenheit (220 degrees Celsius). Line a large baking sheet with foil and place a wire rack on top of the foil.
Pat the chicken wings completely dry using paper towels. This step is crucial for crispiness.
In a large bowl, combine the baking powder, salt, pepper, garlic powder, and cayenne pepper.
Add the dried chicken wings to the bowl and toss them thoroughly until every piece is evenly coated with the dry rub mixture.
Arrange the coated wings in a single layer on the wire rack. Do not let the wings touch each other.
Drizzle the olive oil lightly over the wings.
Bake for 20 minutes. Flip the wings over.
Continue baking for another 20 to 25 minutes, or until the skin is deeply golden brown and very crispy.
Remove from the oven. Toss immediately in your favorite sauce, like Honey Garlic or BBQ, or serve plain with a dry rub.
Notes
For extra crispy skin, place the wings in the refrigerator uncovered for at least one hour after coating them with the baking powder mixture before baking.
If you prefer a saucy wing, toss the wings in sauce only after they come out of the oven.
If you want to make Honey Garlic wings, combine 1/2 cup honey, 1/4 cup soy sauce, 2 cloves minced garlic, and 1 teaspoon grated ginger in a small saucepan. Simmer until slightly thickened, then toss with the hot wings.