Move an oven rack to the bottom rung and second rack to the top. Preheat the oven to 270F.
Mix the baking powder and corn starch together in a small bowl. Place the chicken wings in a large mixing bowl and lightly sprinkle the baking powder. Mix and toss by hand to make sure the baking powder evenly coats the wings.
On a baking sheet or sheets, lay down some heavy aluminum foil and spray with non-stick spray. This is important because the wing tend to stick and clean up is a pain.
Place the wings on the sheet and place on the bottom oven rack and allow to bake for 50 minutes. This allows the fat in the chicken skin to render and mix with the baking powder to work it's crispy magic.
Next, move the wings to the upper oven rack and raise the temperature to 425F. Bake for 30 minutes. Turn the wings and put them back in the oven for another 30 minutes until they are golden brown.
Remove the wings from the oven after the are golden brown and crispy. Shake in your favorite wing sauce and serve.
