Grease
In a bowl, mix together the flour, cocoa powder, sugar, baking soda, baking powder, and salt.
In another bowl, add the egg, applesauce, yogurt, and vanilla extract and beat until well combined.
Then, add in the flour mixture and mix until just combined.
Add the peanut butter and mix until smooth.
Gently, fold in the chocolate chips.
Place the mixture into the prepared loaf pan evenly.
Slide the Air Fryer Basket inside and adjust the temperature to 350 °F to preheat for 5 minutes.
After preheating, arrange the loaf pan into the Air Fryer Basket.
Slide the basket into Air Fryer and set the time for 30 minutes.
After cooking time is finished, remove the loaf pan from Air Fryer and place onto a wire rack for about 10-15 minutes.
Then remove the bread from loaf pan and place onto a wire rack until it is completely cool before slicing.
Cut the bread into desired-sized slices and serve.