New Delhi: In a country where rich gravies, spicy curries and elaborate festive dishes often dominate the spotlight, one humble Bengali preparation quietly continues to win hearts across generations. Meet Dahi Parwal, known in Bengal as Doi Potol—a delicate yet flavour-packed curry where tender pointed gourds are simmered in a lightly spiced yoghurt gravy. It may not enjoy the nationwide fame of shorshe ilish or kosha mangsho, but in Bengali households, this comforting vegetarian dish has long been a cherished part of summer meals and festive niramish (vegetarian) menus. Its understated elegance is precisely what makes it unforgettable.

What is Dahi Parwal or Doi Potol?

The name itself is straightforward—’doi’ means yogurt in Bengali, while ‘potol’ refers to pointed gourd, commonly known as parwal in Hindi. The dish features lightly fried pointed gourds cooked in a smooth, mildly tangy yogurt-based gravy infused with aromatic whole spices, ginger and mustard oil, giving it the unmistakable flavour profile of Bengali cuisine.

Unlike many North Indian dahi-based curries that rely heavily on onions, tomatoes and cream, traditional Bengali Doi Potol keeps the ingredient list remarkably simple. The yogurt remains the hero, lending the curry its creamy texture and gentle tang without overwhelming the natural sweetness of the vegetable.

Dahi Parwal (Bengali Doi Potol) Recipe Ingredients For the parwal

• 8-10 medium parwal (pointed gourds)
• 2-3 tbsp mustard oil
• ½ tsp turmeric powder
• Salt to taste

For the yogurt gravy

• 1 cup thick curd (well whisked)
• 1 tsp ginger paste
• ½ tsp cumin powder
• ½ tsp coriander powder
• ¼ tsp red chilli powder (optional)
• 2 green chillies, slit
• 1 tsp sugar
• Salt to taste
• ½ cup warm water (adjust as required)

Whole spices

• 1 bay leaf
• 1-inch cinnamon stick
• 2 green cardamoms
• 2 cloves
• ½ tsp cumin seeds

Garnish

• Fresh coriander leaves (optional)
• A drizzle of mustard oil (optional)

Method Step 1: Prepare the parwal

Wash the parwal thoroughly. Scrape the skin lightly without peeling it completely and trim both ends. You can keep them whole or slit them lengthwise.

Rub the parwal with turmeric and salt and keep aside for 10 minutes.

Step 2: Fry the parwal

Heat mustard oil in a pan until it reaches its smoking point, then reduce the heat.

Shallow-fry the parwal for 6-8 minutes until lightly golden and about 80% cooked. Remove and keep aside.

Step 3: Prepare the yogurt mixture

Whisk the curd until completely smooth.

Mix in ginger paste, cumin powder, coriander powder, red chilli powder (if using), sugar and a little salt. Whisk again to ensure there are no lumps.

Step 4: Temper the spices

In the same pan, add a little more mustard oil if needed.

Add cumin seeds, bay leaf, cinnamon, cloves and green cardamoms. Sauté for about 30 seconds until aromatic.

Step 5: Cook the gravy

Reduce the flame to low.

Pour in the whisked yogurt mixture while stirring continuously. This prevents the curd from splitting.

Cook gently for 4-5 minutes until the raw smell disappears.

Add warm water to achieve a medium-thick gravy.

Step 6: Simmer

Add the fried parwal and slit green chillies.

Cover and cook on low heat for 8-10 minutes, allowing the parwal to absorb the flavours.

Taste and adjust salt or sugar if needed.

Step 7: Serve

Turn off the heat and let the curry rest for 5 minutes before serving.

Serve hot with steamed rice, jeera rice or Bengali ghee rice.

Tips for the Best Dahi Parwal

• Always use fresh, thick curd at room temperature.
• Keep the flame low after adding yogurt to prevent curdling.
• Stir continuously while adding the yogurt mixture.
• Mustard oil gives the dish its authentic Bengali flavour.
• Traditionally, the recipe does not include onion or garlic, making it ideal for festive vegetarian meals.
• A pinch of sugar balances the tanginess of the yogurt and is a signature touch in many Bengali recipes.

As interest in regional Indian cuisine continues to grow, Doi Potol stands out as one of Bengal’s underrated vegetarian treasures.