- Wash and soak both the rice, urad dal and fenugreek seeds together for 2-3 hours. Grind to a smooth batter. Add salt and mix well. Leave the batter overnight or 10-12 hrs to ferment. Before making the dosa, mix the batter well. It should be in easy pouring consistency. If the batter is very thick, add required water and mix well. Heat a tawa. Brush it with oil. Reduce the flame. Pour a ladle full of batter in the centre of the tawa and spread it uniformly with the back of the ladle to a thin circle. Drizzle sesame oil all around the dosa. Increase the flame and cook till both sides turn golden. Serve the dosa hot with sambar and chutney.