Prawn Thokku | South Indian Prawn Gravy
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Prawn Thokku is a beloved South Indian prawn gravy that holds a very special place in Tamil Nadu's coastal culinary heritage. This thick, spiced prawn masala is cooked with a fragrant base of onions, tomatoes, and freshly ground spices that come together in a rich, deeply flavoured gravy. Originating from the coastal communities of Tamil Nadu where fresh seafood is a way of life, this dish captures the bold and vibrant soul of Tamil cooking in every single bite.
Tamil families absolutely adore Prawn Thokku because it is quick to make yet packed with incredible flavour that feels like a celebration on the plate. It is a popular weekend treat when families gather together, and it makes a regular appearance at festive meals, special Sunday lunches, and coastal village gatherings. Many Tamil mothers and grandmothers have their own treasured version of this recipe passed down through generations, making it one of those deeply comforting dishes that instantly brings the feeling of home.
What makes this recipe truly special is how wonderfully simple it is — just a handful of everyday ingredients from your pantry and fresh prawns are all you need. The key to getting the best flavour is cooking the onions until golden and allowing the tomatoes to break down completely before adding the prawns. Always use fresh or properly cleaned prawns and finish with fresh coriander leaves for a bright, aromatic touch. Serve it hot with steamed rice or soft chapati for a truly satisfying meal.
Ingredients
Instructions
💡 Tap a step to mark it doneWash the prawns thoroughly under cold running water, devein them, and set aside in a bowl. Pat them dry lightly with a paper towel if needed. Keeping the prawns clean and dry before cooking ensures better flavour absorption and prevents excess water in the gravy.
Heat 3 tablespoons of oil in a heavy-bottomed kadai or pan over medium heat. Once the oil is hot, add the fennel seeds and let them splutter for about 20 to 30 seconds until they release their warm, sweet aroma into the oil.
Add the fresh curry leaves to the kadai and let them crackle in the oil for a few seconds. This step is very important as it builds the base flavour of the gravy with a classic South Indian aroma.
Add the finely chopped onions to the pan and sauté on medium heat, stirring frequently, for about 8 to 10 minutes until the onions turn golden brown. Do not rush this step — properly caramelised onions are the foundation of a rich and flavourful prawn thokku.
Add the ginger garlic paste to the golden onions and sauté for 2 to 3 minutes on medium heat, stirring continuously, until the raw smell of ginger and garlic completely disappears and the paste blends well with the onions.
Add the finely chopped tomatoes to the pan. Mix well and cook on medium heat for about 6 to 8 minutes, stirring occasionally, until the tomatoes become completely soft, mushy, and the oil begins to separate from the masala on the sides of the pan.
Add the kuzhambu chilli powder and required salt to the cooked onion-tomato masala. Mix everything together well and cook for 2 minutes on low heat so the chilli powder is cooked through and the raw spice smell is gone. Add a splash of water if the masala starts to stick.
Add the cleaned prawns to the masala and mix gently so that every prawn is well coated with the thick spiced masala. Add about 1/4 cup of water to help the prawns cook evenly without burning the masala at the bottom.
Cover the pan with a lid and cook on medium-low heat for 5 to 7 minutes, stirring once or twice in between. Prawns cook very quickly, so be careful not to overcook them as they will turn rubbery. The gravy will thicken beautifully as the prawns release their natural juices.
Once the prawns are cooked through, the oil floats on top, and the gravy has reached a thick thokku consistency, remove from heat. Garnish generously with freshly chopped coriander leaves and serve hot immediately with steamed rice or chapati.
Tips and Tricks
- Always clean and devein prawns properly before cooking. Removing the dark vein ensures the dish tastes fresh and clean without any bitterness.
- Do not overcook the prawns — they only need 5 to 7 minutes once added to the masala. Overcooked prawns become tough and rubbery and lose their natural sweetness.
- For an even deeper flavour, marinate the cleaned prawns with a pinch of turmeric and salt for 10 minutes before adding them to the masala.
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