Add the chicken, soy sauce, honey, water, sesame oil, ketchup, rice vinegar, garlic, ginger and red pepper flakes into the Instant Pot insert.

Mix everything well, close the lid and set the pressure release valve to seal.

Adjust to pressure cook or manual on high for 4 minutes.

Cook till done then perform a quick pressure release and open the Instant Pot.

Select the Sauté setting on low heat.

Make the cornstarch slurry by combining the cornstarch and water in a mixing bowl until smooth and add this into the sesame chicken and combine.

Cook mixing regularly until the sauce thickens, anything up to 5 minutes or to your preference.

Switch off the heat and serve your Instant Pot Garlic Sesame Chicken over rice and with any desired garnishes.