Take the malai out of freezer and let it come to room temperature.
Transfer it in a big bowl for easy handling.
Add boiling hot milk.
Mix well. Right now the temperature of this mixture should be at luke warm, appropriate to set the curd.
As these are the beginning of winters, so we are transferring it to hot case for setting, otherwise you can use any utensil you commonly used in setting the curd.
Add curd (starter) and mix well.
Put a lid and leave it for 8-10 hours at some warm place in the kitchen.
After the said hours, the curd is set.
Transfer this curd in a wide deep bowl.
Add 1.5 cup water and ice cubes.
Start whisking the curd. You can use hand blender or electric blender.
Whisk for 5-10 minutes or until butter is separated.
Collect the butter and add to a bowl carrying ice cold chilled water. It will wash, as well as harden the butter. And here our butter is ready. If you want to use it as a butter, just squeeze it and keep.
But for making ghee, squeeze the butter and add to a pan.
Put the pan on low heat and let the butter melt.
When butter is completely melted, simmer it for 4-5 minutes. You can see 3 layers, heavy white base, which may have buttermilk, yellow ghee in the middle and foam on the top.
Switch off the heat and leave it undisturbed for 5-7 minutes.
Sieve the ghee through a clean cloth.
Though ghee is made but still it has some traces of buttermilk and to remove that, place the ghee in refrigerator until ghee is set.
Then remove the buttermilk from ghee.
And we have pure ghee from curd is ready.