Add these ingredients to a large mixing bowl:flour, honey, sugar, salt, baking soda, vanilla, water, and oil. Mix them together thoroughly.
Spray a pan (make sure it’s suitable for the air fryer) with cooking spray. Then, pour the cake batter into the pan. Air fry for 30-35 minutes at 320F (160C).
Remove from the air fryer, let it cool for at least 20 minutes, slice, and then serve!