Add cup to a wide thick pan and let it boil
Add jaggery, cardamom powder and ghee
After the jaggery melts in water switch off and strain when it comes to room temperature, to remove impurities
Take a little water in a small bowl. This is to check the consistency of the jaggery. Just add a few drops of boiling jaggery into the water. If you could make it a hard ball, then switch off the flame. Otherwise allow it to boil till that consistency is reached
Keep the peanuts in a wide bowl and pour the jaggery to it. Mix it nicely with a ladle
Grease your hands with ghee and make some balls when it is warm. Alternatively take some rice flour in a bowl and rub them in hands, and make some balls when it is warm. Do not leave for longtime as it will be difficult to handle if left for a longtime
For Paruppu Thengai add the mixture into the cone. Press gently and add little ghee at the top; level it. Cover with aluminum foil and let it rest upright for atleast 2-3 hours