Tomato Kuzhambu (Thakkali Kuzhambu)

Ingredients:
Tomatoes - 1/2 kg or 1 cup Tomato Puree
Tamrind Paste  - 2 tbsp
Sambar Powder - 3 tbsp
Grated Coconut - 2 cups
Onions - 2 big
Green Chillies - 2 nos
Salt to taste
Oil - 1 tbsp
Mustard Seeds - 1/2 tsp
Curry Leaves - a few

Method:
Add one cup of warm water to grated coconut and extract coconut milk. Find here how to extract coconut milk at home. 

In a hard bottom pan heat oil, mustard seeds and when they splutter add onions, green chillies and curry leaves. When the onion turns glassy add sambar powder, tomato puree and salt and mix well. Add tamrind paste and 1/2 cup of water and bring it to boil. When it boils add the coconut milk and simmer it for a few mins. 

Remove from flame. This goes well with idly, dosa,  or even rice.