Dry Seeds of manatha thakkali or dry turkey berry (sundaikai)
1. Using gingely oil is very important to bring a taste for vattha kulambu. Heat the gingely oil in pan. Splutter the small onion,curry leaves,mustard, fenugreek and dry manathathakkali seed (Black night shade in english)together. Fry well till all become golden color.
2. To the above mixture add the tamarind juice which is previously mixed with jaggery,salt, Turmeric powder and sambar powder.
3. Keep it in stove for 20 minutes till the raw smell goes off. To this add more gingely oil and serve hot with white rice.