Simple Pepper Garlic Rasam (Light South Indian Soup)

Posted on January 4, 2026

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Pepper garlic rasam is a thin, warming soup made with tomatoes, black pepper and garlic. It is commonly served with rice or enjoyed on its own when something light and soothing is needed.

This home-style version keeps the flavours gentle and balanced. The steps are clear and forgiving, making it suitable for beginners who want a reliable South Indian recipe without complicated spice blends.


Recipe Information

Prep time: 10 minutes
Cooking time: 15 minutes
Total time: 25 minutes
Serves: 3 to 4
Difficulty level: Easy


Ingredients

Base

  • 2 medium tomatoes, chopped

  • 2 cups water

Spices and flavouring

  • 1 teaspoon whole black peppercorns

  • 3 garlic cloves

  • 1 teaspoon cumin seeds

  • ¼ teaspoon turmeric powder

  • Salt to taste

Tempering

  • 2 teaspoons ghee or vegetable oil

  • ½ teaspoon mustard seeds

  • 1 dried red chilli

  • 8 to 10 curry leaves

To finish

  • 1 tablespoon chopped fresh coriander leaves


Step-by-Step Method

  1. Place the chopped tomatoes in a bowl and gently crush them with your hand or the back of a spoon.

  2. Add 2 cups of water to the tomatoes and set aside.

  3. In a mortar and pestle, coarsely crush the black peppercorns, garlic and cumin seeds.

  4. Pour the tomato water into a saucepan and place it over medium heat.

  5. Add the crushed pepper mixture, turmeric and salt.

  6. Bring the rasam to a gentle simmer and cook for 8 to 10 minutes. Do not let it boil vigorously.

  7. Turn off the heat once the aroma becomes strong and the surface starts to froth lightly.

  8. In a small pan, heat the ghee or oil.

  9. Add mustard seeds and allow them to pop.

  10. Add the dried red chilli and curry leaves and cook for a few seconds.

  11. Pour this tempering directly into the rasam.

  12. Stir gently and finish with fresh coriander leaves.


Cooking Tips

  • Rasam should never boil strongly. Gentle heat keeps the flavour fresh.

  • Crushing the pepper and garlic coarsely gives better aroma than powder.

  • Adjust pepper quantity to suit your spice tolerance.


Variations

  • Vegan: Use vegetable oil instead of ghee.

  • Extra soothing: Add a small piece of ginger while crushing the spices.

  • Less spicy: Reduce the black pepper slightly.


Serving Suggestions

Serve hot with steamed rice and a drizzle of ghee, or enjoy as a light soup on its own. It pairs well with simple vegetable sides.


Storage and Reheating

  • Best enjoyed fresh.

  • Can be stored in the fridge for 1 day.

  • Reheat gently on low heat without boiling.

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