Place parchment paper on a pan and grease it with little ghee and keep aside
Add milk powder and hot water to a wide pan; mix well. make sure the mixture is lump-free
Turn on the stove on medium flame and bring the mixture to boil
Gradually add lemon juice little by little. Mix well after each addition
Add sugar and cardamom powder; mix well and cook for 10 minutes
Reduce the flame and cook for 5 more minutes or until the mixture turns non-sticky leaves the pan as a whole mass. If you take a small portion of the milk mixture it won't stick
Transfer to the greased pan and level the burfi
Let it cool completely
Invert the pan and remove the parchment paper
Grease a sharp knife with little ghee and cut into the desired shape and enjoy milk cake