Preheat oven to 180°C.

In a bowl mix all-purpose flour, cocoa powder, baking powder and salt.

Combine flour, baking powder, cocoa, and salt in a small bowl.

Add chocolate chips. Mix and set aside.

In another bowl, add mashed bananas and sugar. Mix well.

Add oil to the banana mixture and mix well until the oil is well combined with the mixture.

Lastly add eggs and vanilla extract. Mix well.

Now add this banana mixture to the dry mixture and mix until just combined.

If we mix too much at this stage, then the dome will not be formed on the muffin.

Divide the batter into muffin liners. Fill liners 3/4 to almost full.

Bake at 12-15 minutes at 180°C. Muffins are ready when toothpick inserted comes out clean.

Remove from the oven and let cool for about 10 minutes then transfer to a wire rack to cool completely. Store leftovers in an airtight container in refrigerator up to 3 days or freeze for up to 3 months.

Enjoy with tea or coffee!