In a large pan, heat the Sesame oil. Roast the dals (lentils) on medium heat one by one till they turn golden
brown and slightly crispy. Transfer to a plate.
In the remaining oil, fry the tamarind, red chillies and transfer to the lentils plate. Cool completely.
In the hot pan (without any oil), roast the coconut once for 1 mins (with flame switched off). This is optional but crucial to improve the shelf life of the chutney, especially in summers.
Now, DRY grind the dals, asafoetida, salt, jaggery to a very coarse powder (remember this is NOT a smooth chutney, but a rather coarse one, used to mix with the rice).
Now add tamarind and about 3 - 4 TBSP of water and PULSE to a thick kind of consistency. Transfer to a serving bowl. You can serve the thogayal as is, but we prefer it with some tempering / tadka.
For the tempering: Heat 1 tsp of oil. Splutter mustard and curry leaves. Pour onto chutney and serve immediately with hot rice, drizzle a bit of ghee / sesame oil, mix and delve into culinary bliss.