Line the bottom of an 8x8 inch pan with Parchment paper, and set aside.
In a large bowl, add the Brownie mix, Egg, Oil, Water, and Sprinkles. Mix well, until batter is smooth.
Pour the Brownie batter into the pan, and smooth evenly.
Place the pan in the Air fryer, and set air fryer to the 'BAKE' setting, for 20 minutes, at 350 degrees.
When Brownies are done, remove the pan from the air fryer, and let cool for 20 minutes in the refrigerator.
Remove the pan from the refrigerator, and frost with the Chocolate Frosting.
Place the Ghost Peeps on top of the Frosting, and sprinkle the Sprinkle mix over them.
When ready to serve, you can leave the Ghost Peeps laying on the Brownies, or you can stand them up.
Cut in squares, and plate Brownies. If desired, drizzle Chocolate Sauce over the top.
Serve and Enjoy!