Take milk in a heavy bottom pan and heat it. Once it boil, keep stiring and cook till the milk has reduced in half.Once it is reduced in half, add in lemon juice and keep stiring.
It will curdle a little. keep cooking on high flame. The milk will get lot more thick now.
Add in sugar and mix well. Cook this for few more mins till it gets really thick
Now it will change a yellow in colour. Keep cooking till it gets thick and leaves the sides of the pan.
Now you will see no water in the mix.
Take it off the heat and leave it to cool down in the pan itself. It will get thick like a khoya.
Grease your hands with ghee.
Now take a small portion on your hands. Shape it into balls and press it little Now make a hole in the center.
Repeat this for remaining mix. Chop pista very finely. Now place few chopped pista over this and chill.
Serve cold.
Video
Notes
Use full fat milk for richer and tasty milk pedas.
Keep stirring so the pedas doesn't catch in the bottom.
use wider pan for speeding up the cooking process.