Make a traditional Baingan Bharta or Eggplant Bharta easily in your Instant Pot. Follow this technique to get a wonderful smoky flavor without spending time to roast and char the eggplant.
Once the oil is hot, put in one layer of eggplant slices. This is the tough part now, do not mess with them until they are properly charred at the bottom. Without this char, you won't get the smoky taste you need. Once these slices char, they will shrink a bit and you can put in some more eggplant slices.
At this point, you may need to put in more oil. This thing sucks oil, so just embrace that. Use a spatula or spoon and scrape up the char from the bottom as needed. This took me about 10-15 minutes to get it all charred.
Once the eggplant is charred and somewhat soft, add in onions, garlic, turmeric, salt and let these spices roast in the oil for a bit as you mix everything together.