Measure and keep all the other ingredients ready. Also, preheat the oven to 180 degrees for 10 minutes. Take a ripe banana. Mash the bananas well with a fork. Alternatively, you can blend the chopped banana pieces in a blender to puree them.
Once the bananas are thoroughly mashed, add sugar. Then add oil
Now add milk and vanilla essence
Stir it well with a hand whisk until the sugar is completely dissolved. Mix well so that the oil is mixed evenly. Once all the wet ingredients are mixed well, place the sieve over a bowl. Add the whole wheat flour
Add in cocoa powder and baking soda
Add in baking powder as well. Sift the flour
Gently fold everything well for 10-15 seconds. Don't over mix. Then add half of the chocolate chips to the mix
Give a stir, and the final mixture should be thick. Grease a cake pan with oil. Pour the mixture to the cake tin, garnish with chocolate chips, and gently tape it
Bake in the preheated oven at 180 deg C for 35 -40 minutes (baking time depends on the size of the cake pan and oven) at 180° Celsius till a toothpick inserted in the center comes out clean. Allow cooling in the tray for 5 minutes once done. Once the cake is cooled down completely, cut into pieces, and serve