Instructions
In a medium bowl, whisk to combine sugar, cocoa powder, flour, baking powder, and salt.
In a small bowl, whisk the melted butter and egg until combined.
Add wet ingredients to dry ingredients and stir until combined.
Transfer brownie batter to a prepared pan and smooth the top.
Cook in the air fryer at 350° for 16 minutes.
Let cool 10 minutes before slicing.
Serve and enjoy.
Pro Tips
Ensure the melted butter is cooled slightly before mixing to prevent scrambling the egg.
Do not overmix the batter once the wet and dry ingredients are combined to keep the texture fudgy.
Allow the brownies to cool for at least 10 minutes to ensure they set properly before slicing.