Wash arisi(rice) and dhal and add a tbsp of ghee in a cooker and roast with cumin,pepper and salt added.
Then add water than usual amount(4:1 ratio)
Close the lid and leave for two whistle.
After that open the cooker add milk and mix.
Now in a small kadai add ghee and when hot add cashew,curry leaves and little asafoetida.
Add to pongal.
serve hot with coconut chutney.
Notes
Not only varagu you can do the same with other millet's in the same way.
You can add more ghee or reduce it according to your need.
I didn't add ginger in pongal instead I have added it in coconut chutney