Preheat the oven to 200 Degree C / 400 degree F. Line 12 bun muffin tin with cupcake cases.

Take a mixing bowl, add in banana, oil, eggs,sugar, cocoa and mix well.

Add in flour, baking soda and fold gently till combined.

Now take a icecream scoop and fill the muffin cases with the batter.

Sprinkle few walnuts on top of them.

Bake them in the oven for 15 to 20 mins, insert a toothpick to see the doneness.

Remove from the oven and let them cool on the tin for 10 mins.

Remove them from the cases and leave them to cool comepletely.

You can enjoy this muffin by spreading some soft butter with a cup of chai or coffee.

Notes:

These muffins are not so sweet, they are perfect with a cup of coffee or chai. If you want them sweet, you can add more sugar.