1. Wash, peel and chop sweet potato into 1 inch cubes.
2. Cook then in a microwave with some water for about 10 mins or until they are cooked.
3. You can even pressure cook them.
4. Remove excess water and keep aside.
5. Heat ghee in a kadai. Add mustard seeds and the dal mixture.
6. Add cooked sweet potatos after the dal turns golden brown. Saute well.
7. Add salt, sugar and mix well. Adjust the sweetness according to your taste.
8. Add grated coconut, cilantro and mix well.
9. Serve hot with rice-rasam combo or even rotis

Courtesy: http://maneadige.blogspot.com/