Thuvar dhall 1/4 cup
Water 2 cups
Tamarind paste 1/4 t.spoon
Tomatoes 2-3
Rasam powder 1 t.spoon
Cilantro a small bunch washed and finely chopped
Hing a small pinch
Turmeric 1/4 t.spoon
Cumin powder 1/4 t.spoon
Pepper powder 1/4 t.spoon
Lemon juice 1/2 t.spoon
Ghee 1/2 t.spoon
Salt 1 t.spoon (or to taste)

Method
Cook thuvar dhall with 2 cups of water and keep it aside.
Boil tomatoes in 1-2 cups of water, then add tamarind paste, asaefotida, salt, and turmeric. After tomatoes are cooked, add rasam powder, and let this boil for five minutes. Now add thuvar dhall and let it cook for a few more minutes.

Heat some ghee, splutter mustard, then add pepper powder and
cumin powder to this and mix this with the rasam. Garnish
with chopped coriander leaves serve hot.