Combine all the greens, onions, tomatoes, ginger-garlic-chili with water in a microwave safe bowl and microwave for 7-8 minutes on high power.
Add the butter, maize flour, salt and chili powder.
Microwave again on medium power for 12-15 minutes.
When cooled, blend the whole mixture coarsely or smoothly... Whatever you prefer.
Microwave the pureed mixture for 4-5 minutes on medium power.
Preparing the Tempering for 2-3 servings:
In another microwave safe bowl, take some ghee and microwave for 1-2 minutes.
Add the onions and microwave for 7-8 minutes till they get light browned.
Add the 2-3 small bowls of saag to the browned onions and microwave for some 2-3 minutes more.
Top the spinach saag with homemade butter and serve with makki di roti.
Notes
For cooking palak saag on fire, follow this method:
Add all the greens, onions, tomatoes, ginger, garlic, green chilies with salt and water in a deep pan or a pressure cooker. Add around 1 cup water to the veggies.
Cook the whole lot in the pan for 7-10 minutes or in a pressure cooker for 3 to 4 minutes. Also add maize flour and butter.
Once cooled blend into a smooth or coarse paste. Add the saag in another pan and simmer for 7-10 minutes till it thickens a little bit.
For the tempering:
Brown the onions in ghee and then add the saag to it.
Simmer for 3-4 minutes.
For a saag serving 2-3 people, 1 medium sized onion is enough with 2 tbsp ghee for the tempering. The remaining saag you can refrigerate and use as when required.