Kollu Rasam
A traditional South Indian soup made with horse gram, tamarind, and a blend of aromatic spices. This peppery and tangy rasam is both comforting and incredibly nutritious, often enjoyed with steamed rice.
For 4 servings
Cook the Horse Gram
- Wash the horse gram thoroughly and soak it in water for at least 4 hours, or preferably overnight.
- Drain the soaking water. Add the horse gram to a pressure cooker with 2 cups of fresh water.
- Pressure cook on medium heat for 8-10 whistles, or until the grains are very soft and easily mashable.
- Allow the pressure to release naturally before opening the lid.
Prepare the Rasam Base
- Strain the cooked horse gram through a fine-mesh sieve, carefully collecting all the water in a bowl. This nutrient-rich water is the base for the rasam.
- Take about 1/4 cup of the cooked horse gram and mash it into a coarse paste. This will act as a natural thickener.
- Set aside the remaining cooked horse gram to use in another dish like a stir-fry (sundal) or salad.
Make Tamarind Extract and Spice Paste
- Soak the tamarind in 1 cup of warm water for 15 minutes. Squeeze it well to extract all the pulp, then strain the liquid and discard the solids.
- In a small grinder or mortar and pestle, combine the black peppercorns, cumin seeds, garlic cloves, and dried red chilies.
- Grind them to a coarse paste. Avoid adding water if possible, but you can add a teaspoon if needed to help the grinding process.
Simmer the Rasam
- In a medium pot, combine the reserved horse gram water, tamarind extract, chopped tomato, mashed horse gram paste, rasam powder, turmeric powder, and salt.
- Bring the mixture to a boil over medium heat, then reduce to a simmer.
- Let it simmer for 5-7 minutes, allowing the flavors to meld and the raw smell of the tamarind to dissipate.
Add Spice Paste and Finish
- Add the freshly ground spice paste to the simmering rasam and stir well.
- Cook on low heat for only 2-3 minutes, just until the rasam becomes frothy on top. Do not let it come to a rolling boil, as this will diminish the aroma of the fresh spices.
- Turn off the heat.
Prepare the Tempering (Tadka)
- Heat the ghee in a small tadka pan over medium heat.
- Once hot, add the mustard seeds and let them splutter completely.
- Add the asafoetida and curry leaves. Be careful as the leaves will crackle. Sauté for 10-15 seconds until the leaves are crisp.
Combine and Garnish
- Immediately pour the hot tempering over the prepared rasam.
- Garnish with freshly chopped coriander leaves.
- Cover the pot and let the rasam rest for at least 10 minutes before serving. This allows the flavors to infuse beautifully.
What to keep in mind.
6 tips from the recipe — small details that make a real difference to the final dish.
- 1Soaking the horse gram is a crucial step; do not skip it, as it ensures the grains cook to a soft consistency.
- 2The key to an aromatic rasam is to not over-boil it after adding the freshly ground spice paste. Simmer gently until just frothy.
- 3Using ghee for tempering provides an authentic, rich flavor that oil cannot replicate.
- 4The leftover cooked horse gram is highly nutritious. Use it to make a simple stir-fry (sundal) with coconut and spices.
- 5For a deeper flavor, you can lightly dry roast the peppercorns and cumin seeds before grinding them.
- 6Adjust the amount of tamarind and tomato to achieve your desired level of tanginess.
Adapt it for your goals.
Flavor
For a richer tomato flavor, you can add one more chopped tomato while simmering the rasam base.
IngredientIngredient
If you don't have rasam powder, you can add 1/2 teaspoon of coriander powder and a pinch of fenugreek powder instead.
Spice LevelSpice Level
Increase or decrease the number of dried red chilies and black peppercorns in the ground paste to customize the heat level.
ConsistencyConsistency
For a thicker rasam, mash a larger quantity (up to 1/2 cup) of the cooked horse gram into the base.
Why this is on our healthy list.
Rich in Protein and Fiber
Horse gram is an excellent plant-based source of protein and dietary fiber, which aids in muscle maintenance, promotes satiety, and supports a healthy digestive system.
Aids in Weight Management
The high fiber and protein content in horse gram helps you feel full for longer, potentially reducing overall calorie intake. It is also valued in traditional medicine for its fat-burning properties.
Boosts Immunity
The blend of spices like black pepper, cumin, and turmeric contains powerful antioxidants and anti-inflammatory compounds that help strengthen the immune system.
Supports Respiratory Health
The peppery heat from this rasam is traditionally known to help relieve chest congestion, clear sinuses, and soothe a sore throat, making it a perfect comfort food during a cold.
Frequently asked questions
Yes, it is exceptionally healthy. Horse gram is a powerhouse of protein, iron, and fiber. The spices like black pepper and cumin aid digestion and have anti-inflammatory benefits, making this a highly nutritious soup.