Iyer More Kuzhambu
Traditional buttermilk gravy with ash gourd and coconut paste.
About this dish
A staple in Tamil Brahmin (Iyer) households, this is a delicate, yogurt-based gravy often served during festivals or weddings. Unlike the North Indian Kadhi, this uses a raw ground coconut-cumin-chili paste and is never boiled vigorously. The ash gourd (white pumpkin) is the most traditional vegetable used, providing a cooling contrast to the tangy buttermilk.
Ingredients
Vegetable and Curd
- 250g Ash gourd (White pumpkin), peeled and cubed
- 500ml (2 cups) Sour curd/yogurt, whisked smooth
- 1/2 tsp Turmeric powder
- Salt to taste
The Coconut Paste
- 1/2 cup Freshly grated coconut
- 1 tbsp Toor dal, soaked for 20 mins
- 1 tsp Raw rice, soaked for 20 mins
- 3-4 Green chilies
- 1 tsp Cumin seeds (Jeera)
- 1/2 inch Ginger
Tempering (Tadka)
- 2 tsp Coconut oil
- 1 tsp Mustard seeds
- 1/2 tsp Fenugreek seeds (Methi)
- 2 Dried red chilies
- 1 sprig Curry leaves
- A generous pinch of Asafoetida (Hing)
Method
- 1
Cook the Ash Gourd
Place the cubed ash gourd in a pot with just enough water to cover them, plus turmeric and salt. Cover and cook on medium heat for 8-10 minutes until the pieces are translucent but not mushy.
- 2
Grind the Thickening Paste
Drain the soaked toor dal and rice. Grind them with coconut, green chilies, cumin, and ginger into a very smooth, thick paste using minimal water.
- 3
Prepare the Buttermilk
Whisk the sour curd with 1 cup of water until it is completely smooth and free of lumps. The curd must be slightly sour for the best flavor.
- 4
Combine and Simmer
Add the ground coconut paste to the cooked ash gourd. Cook on low flame for 2-3 minutes to take the raw edge off the dal and rice in the paste.
- 5
Add Buttermilk Carefully
Lower the heat to the absolute minimum. Pour in the whisked buttermilk and stir gently. Heat for 3-4 minutes, stirring constantly. Watch for the 'frothing' stage.
- 6
Avoid Boiling
Remove the pot from the heat as soon as you see tiny bubbles forming on the edges and the mixture starts to froth. Never let it come to a rolling boil, or the curd will curdle and separate.
- 7
Final Tempering
Heat coconut oil in a small ladle. Add mustard seeds, fenugreek seeds, red chilies, curry leaves, and hing. Once the mustard pops, pour the hot tempering over the gravy and cover immediately to trap the aroma.
Notes & variations
- If you don't have ash gourd, you can use okra (sautéed first) or chayote squash.
- The soaked rice and dal act as stabilizers to prevent the yogurt from splitting.
- Always use coconut oil for tempering to get the authentic Iyer-style flavor.
- Serve immediately or within a few hours; reheating should be done very gently on low heat.
Serve with
Serve with hot steamed rice and a side of spicy Paruppu Usili or Potato roast.
Cook's note
The secret to a perfect More Kuzhambu is 'Nurai Varudhal'—turning off the heat exactly when the gravy begins to froth but before it boils.