Prepare muffin tins by lining them with cupcake liners and lightly spraying the paper liners with vegetable spray to prevent sticking.
Place all ingredients for the cupcakes in the bowl of a stand mixer or a large mixing bowl.
Using the paddle mixer attachment (or hand mixer), mix ingredients on low for 30 seconds to incorporate and then on medium speed for 2 minutes. Scrape the sides and bottom of the bowl to make sure everything is mixed together well.
Using an ice cream scoop, fill muffin tins ¾ full. (I got 16 cupcakes out of this recipe.)
Set the pan into the air fryer, set the temperature to 320 degrees F, air fryer setting, for 10 to 12 minutes or until a toothpick inserted in the center comes out clean.
Cool completely before icing.
Using a spatula, transfer the cream cheese icing into a bowl and add ¼ teaspoon cinnamon. Stir well.
Transfer icing into a piping bag with a star tip or a Ziploc bag with a corner cut out. If the icing seems too thin, refrigerate for 5 minutes before icing the cupcakes.
Gently squeeze the icing out of the bag in a circle around the top of the cupcake. Start from the outside edge and work towards the center.
I found that one container of icing didn’t quite ice all the cupcakes (14 out of 16) using a star tip. If you wanted the icing to go farther, you could spread it on the cupcakes with a knife.
Plate, serve, and enjoy!