In a large mixing bowl, cream the butter and sugar together.
Then mix in the eggs, lemon zest, vanilla extract, flour, salt (if using), baking soda, and sour cream.
Mix well.
Then pour the prepared batter into an air fryer safe pan, which has been sprayed with non-stick cooking spray (you can also use olive oil spray)
Set in your air fryer oven or basket and set the temperature for 330 degrees F, air fryer setting, for 15-20 minutes,
Let the bread cool, and then in a small bowl, mix the powdered sugar, lemon zest, and lemon juice.
Spread the icing over the top.
Plate, serve and enjoy!