Bengali cuisine
Fish curry
Posto Gravy
Intermediate
For 4 people

Bengali Doi Posto Katla: Catfish in Tangy Curd and Khus Khus Gravy


Doi Posto Katla fuses two iconic Bengali flavours - tart curd and zesty mustard-poppy paste - into one sumptuous fish curry. Marinated catfish steaks are fried golden, then simmered in a velvety curd-based sauce spiked with mustard, posto, and aromatic spices. The result: crispy fish bathed in a creamy, tangy gravy that's simply irresistible with steamed rice.

Ingredients

  • Katla fish steaks

    250 g
  • Sunrise Haldi Powder

    1/2 tsp + 1 tsp
  • Salt

    1 tsp + to taste
  • Sunrise Shorshe Posto Powder

    1 tsp
  • Warm water

    2 tbsp
  • Refined oil (or mustard oil)

    4 tbsp, divided
  • Bay leaves

    2
  • Dried red chilli

    1
  • Sunrise Kala Jeera

    1 tsp
  • Onion (thinly sliced)

    1 large
  • Tomato (chopped)

    1 medium
  • Ginger-garlic paste

    1 tbsp
  • Sunrise Kashmiri Mirch Powder

    1/2 tsp
  • Sunrise Kali Mirch Powder

    1/2 tsp
  • Sugar

    1 tsp
  • Curd (yogurt, beaten till smooth)

    1/2 cup
  • Coriander leaves (chopped)

    2 tbsp
  • Green chillies (slit)

    2

Sunrise tip: For an even richer curry, marinate the fish for 30 minutes. You can also add Sunrise Lal Mirch Powder to the marinade for spice or Sunrise Kashmiri Mirch Powder for a more vibrant red colour. The longer it absorbs the spices, the better it gets!


Steps

Step 1: Marinate the fish

Time: 10 minutes

In a bowl, mix 1/2 tsp Sunrise Haldi Powder and 1/2 tsp salt. Rub this all over the katla pieces till well coated. Set aside for 5-10 minutes.

 

Step 2: Soak Shorshe Posto Powder

Time: 5 minutes

In a small bowl, mix 1 tsp Sunrise Shorshe Posto Powder with 1 tbsp warm water. Stir well and let it soak for 5-10 minutes. This helps the mustard and poppy flavours bloom.

 

Step 3: Fry the fish

Time: 10 mins

Heat 2 tbsp oil in a heavy pan. Gently slide in the marinated fish, skin side down. Fry on medium heat for 2-3 minutes till the skin crisps up and turns golden. Flip and fry the other side for 2 minutes more, till the fish is cooked through. Remove to a plate.

 

Step 4: Temper the oil

Time: 1 minutes

To the same pan, add 1 tbsp more oil. Once hot, add bay leaves, dried red chilli and 1 tsp Sunrise Kala Jeera. Let them sizzle for a few seconds to release their aroma.

 

Step 5: Sauté onion-tomato base

Time: 6 minutes

Now add the sliced onions and sauté for 2-3 minutes until soft and translucent. Tip in the chopped tomatoes. Cook for another 2-3 minutes until the tomatoes turn mushy.

 

Step 6: Add spices

Time: 3 minutes

Push the onion-tomato mix to the sides of the pan. In the centre, add 1 tbsp ginger-garlic paste. Sauté for 30 seconds till the raw smell goes.

Mix in the soaked Shorshe Posto Powder, 1 tsp Sunrise Haldi Powder, 1/2 tsp Sunrise Kashmiri Mirch Powder, 1/2 tsp Sunrise Kali Mirch Powder, salt to taste, and 1 tsp sugar.

Stir well and fry the spices for 2 minutes on low heat.

 

Step 7: Add curd

Time: 5 minutes

Lower the heat and pour in the beaten curd. Immediately start stirring to prevent the curd from splitting.

Cook the curd-spice mix for 3-4 minutes, stirring often, until oil separates on the sides.

 

Step 8: Simmer the curry

Time: 10 minutes

Add 1/2 cup water to the pan and mix well. Let the curry come to a gentle boil.

Carefully slide in the fried fish pieces. Spoon the curry over the fish to coat it well.

Scatter 1 tbsp chopped coriander leaves on top.

Cover and simmer on low heat for 5 minutes, for the fish to absorb the flavours.

 

Step 9: Garnish and serve

Turn off the heat and let the curry rest for 2 minutes.

Transfer to a serving bowl. Garnish with remaining coriander leaves, slit green chillies, and lemon wedges.

Serve Doi Posto Katla piping hot with steamed rice on the side. Enjoy!

 

Goes Best With

Side Dish: Steamed rice, roti, or naan

Accompaniment: Sliced onions and cucumber salad