Heat a heavy bottomed pan. Add 1/2 cup of water. Adding water prevents the milk getting stuck to the bottom of the pan. Add 4 cups of milk to the pan.
Keep the flame in high and start stirring. When the milk starts to boil, keep the flame in medium.
Keep stirring and scrape the sides of the pan to ensure the milk solids are collected and mixed with the milk.
Slowly the milk gets thicker as more and more milk solids gets mixed with milk.
Keep stirring occasionally till the milk reduces 3/4 of its quantity.
The milk mixture becomes thicker with most of milk solids collected. Add the grated jaggery at this time.
Give a good mix. Also add cardamom powder and stir well.
Adding jaggery dilutes the mixture again. So keep stirring in low flame. Add ghee to the therattipal.
Stir till the milk mixture becomes thicker and starts to leave the sides of the pan without sticking to pan.Switch off the flame.
Delicious Therattipal (Pal Kova with jaggery) is now ready!