Bring milk to a boil in a saucepan.
Once the milk starts boiling, add the butter and sugar and whisk continuously for 2-3 minutes.
Let the mixture simmer. You will notice the color of the milk changing to light yellow/cream. Once the mixture becomes half in quantity, the condensed milk is ready.
Transfer the condensed milk to the refrigerator and let it cool down.
Next, take a mixing bowl and add the hung curd, coffee decoction, and the prepared condensed milk. Whisk the mixture together.
Cover the mixture with aluminum foil and steam for 20 minutes. Let the mixture cool down to room temperature.
Transfer the steamed mixture to cups or bowls of your choice for individual portions. Transfer the cups/bowls to the refrigerator and let it chill for at least 5 hours.
Serve as a delicious dessert post meal.