Step 1

Lightly grease a small heat-safe pan that fits in your air fryer with cooking spray. Set aside.

Step 2

In a microwave-safe bowl, melt chocolate chips and butter in 30-second 50% power increments, stirring occasionally until smooth.

Step 3

Whisk in the cocoa powder and set aside to cool.

Step 4

Preheat the air fryer to 330 degrees F while you make the batter.

Step 5

In a separate bowl, whisk together sugar, egg, and vanilla until well combined.

Step 6

Add warm chocolate mixture and whisk well.

Step 7

Add flour and salt and fold in with a spatula until just combined.

Step 8

Sprinkle the top with additional chocolate chips, if desired.

Step 9

Pour batter into the prepared pan and place it in the air fryer basket.

Step 10

Air fry for 22-25 minutes, until a toothpick inserted in the outer edges comes out with dry crumbs. The center will still be a little gooey, but the brownies will continue to cook in the middle after removing.