Optional step - For the Kozhambu spice blend dry roast all the ingredients in a pan and grind it to a powder. You can skip this step if you don't want to make this spice blend.
In a pan heat up the oil and add the mustard seeds. Let it splutter.
Add the cumin and fennel seeds and let them bloom
Add the curry leaves and then the onions and fry them till they turn translucent
Add the tomatoes and let them soften
Add the turmeric, chilli and coriander powder.
If you have made the Kozhambu spice blend or you have Sambhar powder, you can add it at this point. These are optional.
Sauté till the spices smell fragrant.
Add the tamarind juice and 2 cups of water
Let it all boil till the onion and tomatoes are well cooked.
Add the dumplings to the cooked onion and tomato curry while it's still boiling. Make sure to space the dumplings so that they don't sit on each other or overcrowd in the curry.
Let the dumplings cook in the curry. They will start floating up once fully cooked.
Once all the dumplings start floating, add the coconut milk and let it slightly boil.
Switch off and garnish with cilantro and curry leaves.
They taste delicious with a steaming bowl of rice or cauli rice for the Plant Based whole30 option