In a small bowl, take custard powder along with sugar. Add ¼ cup of milk to it and mix well with a whisk. Make sure there are no lumps. Set aside.

Chop bananas into small pieces and grind them to a paste. Set aside. Reserve some banana pieces to add in the final custard if desired.

Heat the milk in a pan until rolling boil. Simmer it for 5 minutes and add custard powder mix little by little. Mix well.

Lower the flame and boil the mixture until it thickens, and creamy consistency is reached. Give a stir occasionally. Sprinkle nuts powder once done. Mix well. Switch off the flame and cool it down. Once the custard milk mix is cooled down, add the banana puree. Mix well.

Refrigerate the custard mixture for 15-20 minutes and serve.