Add 1 cup of water in the inner pot of Instant pot and place the rack in it.
Meanwhile, grease the baking dish and break eggs in it.
Place the baking dish on the rack and close the lid.
Press the “Manual” button and cook for about 5 minutes on high pressure.
Ones done, do a quick pressure release.
Dish out and mash the eggs with masher.
Add in mayonnaise and season with salt and pepper.
Serve and enjoy! You can decorate with fresh parsley.