Rasam

You need to soak tamarind and cook some dal (thoor) in advance.

Smash/ grind tomato, add to water. Add turmeric, hing, kadipatta, salt, a  of sugar, umm what else?
Boil till level reduces. Add tamarind water, cooked dal, rasam powder and let all of this boil a bit.

Chownk with rai, hing, jeera. Ghee chownk.
Cut up some coriander and you may want to squeeze lime for fresh smell and some tang.

To make rasam powder - dry roast jeera, black pepper, dhania, red chilli, thoordal. Grind.