Heat a thick pan and add ghee. Once the ghee melts add grated carrots. Keep stirring on low flame and cover it for 10-15 min. When the carrots are semi cooked and shows a golden colour then add milk to it. Let the carrot cook nicely in milk. When the carrot and milk mixture is thickened, add powdered rock sugar and cardamom powder. Cover it with lid for 10-12 minutes. Garnish with cashews and serve hot.