Boil the milk.add sugar

Mix it nicely.when sugar will melt.switch off the flame

Mix the custard powder with little milk.pour it in the milk

Mix nicely..now separately beat the egg

Then pour it in the milk..add also vanilla essence

Mix it

Take a tiffin box put the sugar in the box

Heat the Tiffin box at very low flame..

When it will becomes caramelized switch off the flame.

Now rotate the box so that caramel sauce sticks to all side of box

When it becomes cool.spread butter around the tiffin box

Then pour milk mixture in the box cover it very tightly

Put the box in the pressure cooker put some water in the cooker

After 3whistle.it will be done

When it becomes cool flip in a plate serve with cream