Add to a bowl your banana and mash. Then add the rest of your ingredients except your mini chocolate chips. Mix till you get a cookie dough consistency. Then mix in your mini chocolate chips.
Now take a small parchment paper sheet and add 1/3rd of your cookie dough to it. Form into a cookie. I got these sheets off amazon and they are meant to be parchment sheets for burgers.
Add your cookie to your air fryer and air fry on 250 degrees F for 5-6 minutes. Once done, enjoy nice and warm! You can also let these cool! They are amazing that way too.