Step 1

Preheat your air fryer at a temperature of 320°F (160°C) for 5 minutes.

Step 2

Combine the mashed bananas, egg, sugar, olive oil, cinnamon and vanilla extract in a bowl.

Step 3

Sprinkle the all-purpose flour, baking powder, pinch of salt, and baking soda on top, then fold to mix. Add the chopped walnuts and chocolate chips then combine.

Step 4

Divide the batter equally into muffin forms and carefully place these inside your air fryer basket. Air fry at 320°F (160°C) for 17 minutes or until a toothpick inserted in the middle comes out clean.