Prep: Preheat oven to 400℉. Place a large piece of aluminum foil on the bottom of a sheet pan. Set an oven safe wire rack on top and spray with the non-stick cooking spray.
Season Chicken: Pat 2 pounds chicken wings dry with paper towel (the more dry the wings are, the more crispy they will become). Place chicken on the wire rack, keeping them spaced out and not touching. Sprinkle with kosher salt and ground black pepper (I used around ½ tablespoon of each).
Bake: Move the whole pan to the preheated oven to bake for about 40 minutes, or until their internal temperature reaches 165℉ (use a meat thermometer). Remove and let cool slightly.
Add Sauce: Transfer the cooked wings to a large bowl and toss in a ½ cup buffalo sauce (option to add more, if desired). Allow chicken to sit in the sauce for a while, tossing once or twice. This will help the sauce to really coat the chicken.
No wire rack? No problem! Place the chicken directly on the foil, but then you will need to flip them halfway through and the chicken may not turn out quite as crispy on the outside.
Storage: leftover wings can be kept in an airtight container in the fridge for 4-5 days.