Optional step: Pre-steam the broccoli and carrot while you prep the other ingredients (see note 1). Pour half a cup of cold water into the Instant Pot insert. Place the steamer basket inside, then add the carrots and broccoli to the basket. Pressure cook on High for 0 minutes. At the end of cooking time, quick release the pressure and set the carrot and broccoli aside. Carefully empty the water from the insert and return it to the Instant Pot (be sure the outer surface and rim of the insert are dry).
Make the sauce. In a medium bowl, whisk together the chicken broth, soy sauce, honey, grated ginger, sesame oil, garlic and sriracha.
Add ingredients to the Instant Pot. Place the diced chicken in an even layer in the Instant Pot insert, then pour in the sauce. Layer the water chestnuts and baby corn on top. Do not stir.
Pressure cook. Close the lid and set the vent to sealing. Pressure cook on manual High pressure for 4 minutes (your Instant Pot may have a "Pressure Cook" button rather than a "Manual" button). It will take up to 15 minutes to come to pressure.
Release the pressure. At the end of cooking time, quick release the pressure. While the pressure is releasing, whisk together the cornstarch and water to make a slurry.
Thicken the sauce. Turn on the Sauté function and bring the sauce to a simmer. Push the chicken aside to clear a bit of space in the middle, then slowly whisk in the cornstarch slurry, stirring while you add it to avoid clumps. Once the slurry is mixed in, let the sauce simmer for a minute to thicken. Turn off the Sauté function.
Add the steamed vegetables. Add the steamed broccoli and carrot and gently mix it in until all the vegetables are evenly covered in sauce. Set the lid askew on the pot to let everything warm together for 3-5 minutes.
Serve with rice and your chosen garnishes. Store any leftovers in a sealed container in the refrigerator and eat within 4 days.
Video
Notes
If you prefer softerbroccoli and firmercarrots, I recommend steaming them for 0 minutes while you prep the other ingredients. If you like softer carrots, pressure cook them with the chicken. If you preferbroccoli with more bite, stir uncooked florets in after pressure cooking and let them steam for a few minutes in the residual heat.
Inactive time indicates the time it takes for the Instant Pot to come to pressure and release pressure.
This recipe was tested in both 6-quart and 8-quart Instant Pot models.
Nutrition estimate does not include rice or garnishes.