Place the oil in the Instant Pot and select “Sauté”. Then add the onion and cook for about 5 minutes.
Select “Cancel” and stir in the remaining ingredients except the cilantro.
Secure the lid and turn to “Seal” position.
Select “Soup” and just use the default time of 10 minutes.
Press “Cancel” and do a quick release.
Carefully, remove the lid and serve hot.
Remove the lid and serve hot with the topping of cilantro.