A South Indian soup like dish made from tamarind stock, mashed tomatoes, toor dal, spices and garnish.
In a food processor, make rasam powder with the ingredients listed.
In a bowl, prepare rasam mix with the ingredients listed.
Heat oil in a pot, do tadka with mustard seeds, red chili, curry leaves and then pour the rasam mix and boil for 10 mins until the tomatoes are cooked soft.
Add 2 tbsp rasam powder (more if you want spicier) and boil for 2 mins.
Adjust the rasam's taste/ consistency to your liking by adding water, salt, tamarind paste or more rasam powder. Once you add the rasam powder towards the end, you should not boil the rasam for more than 2 or 3 mins.
Garnish with chopped coriander leaves with stem.