- soak tamarind in warm water for 30 minutes. then squeeze the soaked tamarind to get the pulp. Strain the pulp and keep aside. in a grinder, take garlic, red chilies, black pepper and cumin seeds. grinding masala for rasam recipe Grind coarsely or semi-fine. heat oil in a pan. Splutter mustard seeds first then add curry leaves and the coarsely ground spices. saute for a minute. Then add turmeric powder, asafoetida and chopped coriander leaves. Stir well.then add crushed or chopped tomatoes. stir and saute for a minute or two. Then add tamarind pulp,pour water.add salt.simmer rasam without a lid till the tomatoes soften and the raw taste of tamarind goes away. takes about 12 to 15 minutes on a low to medium flame. When done, switch off the flame and the hot and spicy rasam is ready to be served. And the jeera milagu rasam is ready to serve.