We can make rasam in so many style…i am writing one among them…
Coriander seeds-handful
Garlic-1 pod
Dry red chilly-2
Turmeric powder-1/4tsp
Tomato -1
Cumin seeds-1/4tsp
Salt-to taste
Curry leaves-few
Coriander leaves-few
Pepper powder-1/4tsp
Tamarind-small ball
Oil-1tsp
Mastard seeds -1/4tsp
Water -2cup
Method
Take a blender and add coriander seeds, pepper,red chilly(1 no),turmeric powder,cumin seeds and garlic ,and crush well .Keep it aside .In the same blender add chopped tomato and make tomato paste ..Then take a vessel and add all the crushed mix and tomato paste along with water salt, curry leaves ,coriander leaves and tamarind ..Close the vessel with a lid ..Then allow the water to boil ..Boil till he rasam gets its consistency (neither too watery nor too thick).Then filter the rasam.Heat oil in a kadai and splutter mustard seeds then add dry red chilly (1-sliced),curry leaves .Pour this to the rasam …U can also add coriander leaves to garnish…So ur rasam is ready to serve …