Firstly, in a bowl, add ½ cup milk, 2 tbsp cocoa powder, ¼ cup corn flour, and ¼ cup sugar.
Whisk everything well to make it lump-free and keep aside.
Heat 1 cup of milk in a pan, add the prepared mixture, and mix well.
Cook for 2-3 minutes and keep the flame at medium.
Stir continuously to avoid lumps and cook until it thickens.
After perfect consistency is formed, turn off the flame.
Immediately transfer it to a mould in which we want to set.
Tap 2-3 times to remove the bubbles and cool it at room temperature.
Refrigerate it for 5-6 hours or until it is completely set.
After refrigerating, demould it carefully.
Garnish it with white chocolate on top.
Finally, enjoy delicious chocolate pudding.