For cupcakes: in a bowl ,add all the ingredients and with an electric beater, beat until well combined.
Place the mixture into 6silicon cups.
Slide the Air Fryer Basket inside and adjust the temperature to 340 °F to preheat for 5 minutes.
After preheating, arrange the silicon cups into the AirFryer Basket in a single layer.
Slide the basket into Air Fryer and set the time for 10-12 minutes.
After cooking time is finished, remove the silicon cups from Air Fryer and place onto a wire rack to cool for about 10 minutes.
Now, invert the cupcakes onto wire rack to completely cool before frosting.
For frosting: in a large bowl, add butter, cream cheese, vanilla extract, and salt and beat until well combined.
Add the powdered sugar ,one cup at a time, beating well after each addition.
Spread frosting evenly over each cupcake and serve.