Place all ingredients in a saucepan over medium heat.
Stir often until the mixture comes to a boil.
Reduce the heat to a simmer.
Continue stirring until the sauce thickens.
Keep warm until ready to use.
For the wings
Lightly spray the basket of your air fryer with non-stick spray. Preheat per manufacturer's recommendation.
Combine the baking powder and wing seasoning and sprinkle over the wings. Toss to coat well.
Add the wings to the basket (be careful it's hot!). If you have trouble fitting them without overlapping, stand the drumettes along the sides of the basket.
Cook at 360 F for 12 minutes for large wings, 10 minutes for smaller ones.
Carefully flip the wings (rotate the drumettes if they are standing) and cook another 12 minutes again (10 minutes for smaller wings) at 375 F.
Flip the wings one last time. Increase the temperature to 390 F and cook another 6 minutes (4 minutes for smaller wings).