Spray baking pan with nonstick spray or brush with melted butter for easy cornbread removal.
In a mixing bowl, crack an egg and whisk it up.
Pour in milk and whisk until combined.
Add in Jiffy Corn Muffin Mix and stir until mixture is blended. Pour cornbread batter into a prepped baking pan.
Place baking pan in air fryer basket and close up air fryer. Heat at 320 degrees for 20 minutes.
At this point, check to see if cornbread is done baking. If not, cook for another few minutes or until it is done through the center.
Once cornbread is ready, use oven mitts and carefully remove the baking pan from the air fryer basket. Flip the pan over and release cornbread onto a plate. Then place another plate on top of cornbread and flip over once again. The cornbread should be right side up on a serving plate.