firstly, in a large kadai add 1 tomato, 1 chilli, 1 tbsp jaggery, ½ tsp turmeric, few curry leaves, 1 cup tamarind extract and 1 tsp salt.
cover and boil for 10 minutes. boil until the tomatoes turn mushy and tamarind is cooked well.
further, add 4 cup water and 2 cup toor dal.
mix well adjusting consistency as required.
further, add 3 tsp prepared udupi saaru pudi and mix well.
boil for a minute making sure the flavours are well absorbed. do not over boil once the saaru pudi is added.
add in 2 tbsp coconut, 2 tbsp coriander and mix well.
pour the tempering over saaru and mix well.
finally, enjoy tomato saaru with hot steamed rice.