In a medium size saucepan, combine chopped spinach, onions, green chilies, and 1 cup of water. Bring the mixture to a simmer and cook for 4~5 minutes. Add salt and tamarind paste, mix well and simmer for another 5~7 minutes.
In the mean time, combine rice flour with ½ cup water to make a slurry. Make sure there are no lumps. Stir the flour mixture into the spinach mixture. Add more water if the mixture looks too thick. Cook for 5 minutes or until the mixture is slightly thickened. Remove from heat.
Heat oil in a small saucepan, add mustard, cumin & fenugreek seeds and dry red chilies. Cook till the seeds start to splutter, about 30 seconds. Add asafetida, curry leaves and cook for another 30 seconds. Add this tempering mixture into spinach pulusu. Mix well and serve with rice.
Notes
You need a total of 6~8 cups of chopped spinach for this recipe.
I like red onion in this palakura pulusu recipe. But feel free to use white, yellow or even shallots.
Chickpea flour or cornstarch are also great to use as thickener in this dish.
To make thotakura pulusu, simply use chopped amaranth leaves instead of spinach in the recipe.
Other vegetables like okra, pumpkin or drumstick can be also be added.
If you want to make palakura pulusu kura, that is more like a curry than a stew, then simply reduce the amount of water to the dish. You can also add a tomato to this curry.
Leftover palak pulusu can be stored for up to 2 days in an airtight container in the refrigerator.