Turn Instant Pot to SAUTE and add olive oil to the bottom of the bowl.
Once heated, add chopped chicken and cook until golden on all sides, then turn Instant Pot to OFF.
In a separate bowl, whisk together broth, hoisin sauce, soy sauce, rice vinegar, sesame oil, honey, onions, and minced garlic. Pour mixture over your chicken.
Add chopped bell pepper, broccoli, and cashew halves to the Instant Pot. Gently stir until everything is coated in the sauce.
Replace lid and turn knob to SEALING. Press PRESSURE COOK or MANUAL and set timer for 8 minutes.
Once the timer is up, release the pressure (quick release).
Remove chicken and vegetables from the Instant Pot. And turn the pot again to SAUTE.
Add 1 Tablespoon of cornstarch dissolved in water to your pot and whisk gently until it begins to thicken.
Serve Cashew Chicken over rice and topped with your thickened sauce.
Notes
How to turn this into a freezer meal:Place chicken, chicken broth, hoisin sauce, soy sauce, rice vinegar, sesame oil, honey, green onions, garlic, red bell pepper, broccoli, and cashews into a gallon-sized freezer bag. Place freezer bag into freezer and it will last up to 90 days. When ready to use, dump ingredients from bag into Instant Pot and add 1/2 cup of water in with the frozen food. Place the lid on top, move the valve to SEALING, and press the MANUAL button. Set timer for 25 minutes. Do a 5 minute NATURAL RELEASE when the timer is done. Follow the rest of the instructions as written. (Because we are making this a dump-and-go freezer meal, we will skip the saute steps).