Plug in your Instant Pot and press “Sauté.” Add the avocado oil and chopped onion. Sauté, stirring occasionally, until the onion begins to turn brown, about 5 to 8 minutes.
Secure the lid on the Instant Pot and press Manual/Pressure Cook and set the time for 1 hour and 20 minutes. Leave the steam vent sealed and be sure you’re on the default High setting.