Tomato Rasam is a tangy and aromatic South Indian soup made with ripe tomatoes, freshly ground spices, and tempered with flavorful seasonings. It's a comforting dish often served with steamed rice or enjoyed as a light soup. This recipe uses homemade rasam powder for an authentic taste.
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All Ingredients - For Rasam Powder
Fenugreek seeds1/2 tablespoon (about 5-6 seeds)
Coriander seeds1 teaspoon
Cumin seeds1 teaspoon
Whole black peppercorns1 teaspoon
Dried red chilies2
Curry leavesA few
Garlic cloves2
Asafoetida powderA pinch
All Ingredients - For Tomato Rasam
Tomatoes, large, roughly chopped5
Oil1 tablespoon
Mustard seeds1/2 teaspoon
Cumin seeds1/2 teaspoon
Dried red chilies2
Garlic cloves, crushed2
Asafoetida powderA pinch
Curry leavesA few
Turmeric powder1/4 teaspoon
Rock salt (or table salt)1 teaspoon
Tamarind puree, diluted1/2 cup
Water2 1/2 cups
Fresh coriander leavesTo garnish
Ghee (optional)1 teaspoon
🍳Tools You'll Need
Pan
Kadai
🌶️Spice level: Hot🌶️🌶️🌶️🌶️Pack water — this one bites back.
From:Black pepperRed chiliMustard
🔄Don't have an ingredient? Try these swaps6 tips
No Curry leaves?
1 bay leaf + a pinch of lemon zest — Aroma only — flavor is unique.
No Garlic (fresh)?
1/4 tsp garlic powder (per clove)
1/2 tsp garlic granules (per clove)
No Asafoetida (hing)?
1/4 tsp garlic powder + 1/4 tsp onion powder
No Tamarind paste?
1 tbsp lime juice + 1 tbsp brown sugar (per 1 tbsp paste)
Pomegranate molasses (1:1)
No Cilantro?
Flat-leaf parsley (1:1, milder)
Fresh mint (in chutneys, salads)
No Ghee?
Unsalted butter (1:1)
Neutral oil (1:1, lacks the toasted note)
Step-by-Step Instructions
Step 1: Roast Rasam Powder Ingredients
In a pan on medium heat, dry roast fenugreek seeds, coriander seeds, cumin seeds, black peppercorns, dried red chilies, curry leaves, garlic cloves, and a pinch of asafoetida powder for until aromatic. Turn off the stove and let cool.
Step 2: Grind Rasam Powder
Transfer the cooled roasted ingredients to a mixer jar and grind into a coarse powder. Set aside.
Step 3: Prepare Tomatoes
Roughly chop 5 large tomatoes and set aside.
Step 4: Temper Spices
Heat 1 tablespoon oil in a kadai over medium heat. Add mustard seeds and let them splutter (about ). Add cumin seeds, dried red chilies, crushed garlic, a pinch of asafoetida, and curry leaves. Sauté for until fragrant.
Step 5: Cook Tomatoes
Add chopped tomatoes to the kadai. Add 1/4 teaspoon turmeric powder and 1 teaspoon rock salt. Sauté for , then add 1/2 cup diluted tamarind puree. Mix well and cook for until tomatoes are soft and mushy.
Step 6: Add Rasam Powder and Water
Add the ground rasam powder to the cooked tomatoes. Pour in 2 1/2 cups water and mix well. Bring the mixture to a boil over medium-high heat (about ).
Step 7: Finish and Rest
Once the rasam comes to a boil and you get a fragrant aroma, turn off the heat. Add fresh coriander leaves and 1 teaspoon ghee (optional) for extra flavor. Cover and let the rasam rest for before serving to allow the flavors to meld.
Pro Tips
• Roast the rasam powder ingredients on low flame to avoid burning and enhance aroma.
• Let the rasam rest for 5 minutes after cooking for flavors to meld.
• Adjust tamarind and salt to your taste preference.
Recipe Variations
• Add cooked toor dal for a thicker, protein-rich rasam.
• Skip ghee for a vegan version.
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