Preheat your Air Fryer to 350 degrees, FareinheightThen using non-stick cooking spray, spray your baking pan.In your mixing bowl, mix together the melted butter and sugar. Mix until light and fluffy. Then add your eggs, vanilla, flour, cocoa and baking powder. Mix well.Our into the Air fryer pan, and set the timer for 20 minutes.After 20 minutes, check to see if your brownies are done, if not add 5 more minutes on the Air Fryer.Let cool before serving andEnjoy!