Place the cubed Paneer in a pot of Hot water. This step ensures that the paneer stays soft and creamy.
Start the instant pot in SAUTE mode. Heat oil and add cumin seeds. When cumin seeds start to brown, add ginger, garlic, green chili and onions. Sprinkle some salt. Sauté for 2 minutes.
Add tomato and spices. Stir and let it cook for 2 minutes. Add water and scrap the bottom of the pot (deglaze the pot ) Add in the spinach. Press cancel and close the instant pot lid with vent in sealing position.
Choose MANUAL or PRESSURE COOK mode on high pressure for 2 minutes. Once the instant pot finishes cooking and goes to keep warm timer, wait for 5 minute and then release the leftover pressure by moving the valve from SEALING to VENTING. After the silver pin drops, open the lid.
Using an immersion blender, blend the cooked ingredients to smooth puree. Add the cubed paneer and garam masala. Cover and let it sit for 5 minutes, so the paneer soaks in the flavors.
In the meantime, on the stove, make additional tadka. Heat up the ghee in small fry pan. Add chopped garlic and let it fry till golden brown. Turn off the heat. Add whole red chilies and give it a good stir. Pour the sizzling tadka (additional flavor tempering) over the Palak Paneer. Gently stir so everything mixes well. Palak Paneer is ready to be served. Serve warm.