1 large Tomato
1/2 medium Onion
3-4 Green Chillies
4-5 strands of Coriander leaves
10-12 Curry leaves
Grape sized Tamarind
1 tsp Sugar / Small piece of Jaggary
Salt to taste
Big pinch of Asafetida powder / Hingu
Pinch of Turmeric powder
1-1.5 cups cooked Yellow Lentils/Toor dal /Togaribele
1 tsp Mustard seeds
2 tsp Oil
Chop onion, tomato into small long thin pieces as shown in the picture below. Cut green chillies vertically into two long halves as shown in the picture below.
Put tamarind in a bowl and add little amount of water. Squeeze it and keep it aside.
Put mustard seeds and oil in a thick bottomed vessel/pan. Once it starts spluttering, add curry leaves, green chillies, asafetida powder, chopped onion and turmeric powder. Fry them for about 3-4 mins in medium flame until onion becomes light golden in color.
Add chopped tomato and fry them for about 1 min.Add tamarind water, salt, jaggary/sugar, sufficient amount of water and mix them well.Cook them well by covering a lid for about 20-30 mins. Add cooked yellow lentils and bring them to boil. Add salt, tamarind water and water if required.(Cook the yellow lentils in a pressure cooker (3-4 whistles)by adding sufficient amount of water. The cooked yellow lentils can preserved in refrigerator for about 8-10 days.)Keep the rasam in medium/low flame for about 4-5 mins.
Add chopped coriander leaves, mix them well and cover the lid. Mix well before serving. It goes well with Rice.