1/2largetomato - only half needed, if small sized make it one.
1/4tspturmeric powder
Instructions
Grind coconut, mustard seeds, cumin seeds, chilli powder, turmeric powder, sambar powder and tomato to a paste. Add water and grind if necessary.
Heat oil, crackle mustard seeds. Drop in urad dal and chana dal. Saute well until light brown . Add curry leaves and chopped banana stem. Add little water and cook it closed with salt added.
When the banana stem is done. Add the ground masala to it and mix well. If water is already drained sprinkle little water and Let it cook in medium flame until raw smell of masala goes off and water gets drained for about 5-10 minutes.