Dredge chicken in arrowroot powder and keep aside for 5 minutes.
Sauté for 3 minutes on each side and cancel the sauté function.
Whisk together all the remaining ingredients in a separate bowl to make a paste.
Add this paste to the Instant Pot and lock the lid.
Set the Instant Pot to “Manual” mode for 8 minutes at high pressure.
Release the pressure naturally and dish out the chicken.
Sprinkle sesame seeds and green onion over it.