In a large kadai, take 1½ cup of jaggery add in 2 tbsp water and stir till the jaggery melts keeping flame on low stir well till the jaggery melts,boil the jaggery syrup on low flame for 5 minutes.
boil till the syrup turns glossy and thickens,check the consistency, by dropping syrup into a bowl of water, it should form hard ball else boil for another minute and check.Turn off the flame add add roasted peanuts,stir well making sure jaggery syrup coats well.