Pour one cup of water in the Instant Pot and insert the steam rack. Arrange the eggs on the rack, then secure the lid, making sure the vent is closed.
Using the display panel select the MANUAL or PRESSURE COOK function*. Use the +/- keys and program the Instant Pot for 5 minutes.
When the time is up, let the pressure naturally release for 5 minutes, then quick-release the remaining pressure.
Immediately move the eggs to an ice bath for at least 5 minutes, then peel.
Cut the eggs in half lengthwise and set the yolks aside. Arrange the emptied eggs on a serving dish.
In a medium bowl, roughly mash avocado with a fork, then stir in lime juice, salt, sour cream and two of the egg yolks (reserve the remaining 4 yolks for another use).
Fold in chopped cilantro, chives and jalapeno (if using).
Fill eggs with avocado mixture and top each with a small sprig of cilantro.
Notes
*The MANUAL and PRESSURE COOK buttons are interchangeable.