Take chicken wings out and pat dry. Place wings in large bowl and add baking powder and salt, then toss to coat evenly.
Line a baking sheet with foil, then place a cooling rack on the foil. Spray the rack with oil spray. Place wings on rack in a single layer with skin side up.
Bake for 30 minutes at 250°F. Increase the oven temperature to 425°F and bake for an additional 50 minutes to 1 hour, rotating the tray halfway through.
Remove from tray and let stand for 5 minutes. Toss the wings in your favorite sauce.
Notes
Use baking powder that is less than a year old since it has been opened. You can test it by stirring half a teaspoon of baking powder into a cup of hot water. It will immediately start to fizz and release carbon dioxide gas if it’s still fresh enough to use.
Cut the chicken wings at the joint using either kitchen shears or a sharp knife. See step-by-step instructions.
Place wings on a wired cooling rack when baking when allows all areas of the skin to get even cooking.