Instructions
Add the sauce ingredients to the Instant Pot. Soy sauce, water, vinegar, ginger, garlic, sugar, and white or black ground pepper.
Then add the chicken, onion, zucchini (if you decide to pressure cook it, important to see notes below), and mushrooms.
Secure the lid and set the vent to SEALING. Select the PRESSURE COOK/MANUAL setting and set the cooking time for 3 minutes at high pressure. The Instant Pot will take around 7-10 minutes to come to pressure and start cooking. When the cooking program ends, quickly release the steam.
To Thicken the Sauce
Press on SAUTE, and once the sauce comes to a gentle simmer, add the cornstarch mixed with water. Whisk until the sauce is thickened (it thickens very quickly).
Serve over rice, and garnish with sesame seeds and chopped green onion.
