firstly, saute 6 large tomatoes in 3 tbsp oil.
also add a small ball sized tamarind, 1 tsp jaggery and mix well.
cover and cook for 10 - 15 minutes or till the tomatoes turn mushy.
mash the tomatoes slightly making sure it is cooked completely.
further, add the roasted and powdered methi and mustard seeds, ½ tsp turmeirc, 1 tbsp red chilli powder and 1 tsp salt.
mix well making sure the spices are combined well and oil separates.
in a small kadai, heat 2 tsp oil for tempering.
further, add ¾ tsp mustard seeds, ¼ tsp hing and few curry leaves.
allow to splutter and pour the tempering onto the prepared tomato thokku.
finally, mix well and tomato thokku / tomato pickle is ready to serve with rice, idli or dosa. or store in a airtight container and refrigerate.