Cut the chicken into bite-size pieces. Season with salt and pepper.
Set Instant pot to Saute and add olive oil.
Add onion and cook on "saute" for a few minutes until almost caramelized.
Add garlic and cook for 1 more minute.
Add chicken and toss to coat with oil. Cook for 1 minute.
Pour in the stock and the soy sauce.
Close the lid and cook at high pressure for 7 minutes.
Once done, do a quick pressure release and open the lid.
In a cup, combine cornstarch with ½ cup of cooking liquid and make a slurry.
On the Instant Pot, press "saute" and pour the slurry over the chicken while stirring well.
Add broccoli and close the Instant pot. Let the broccoli cook for 5-6 minutes on saute. (NO need for pressure cooking).
Open the lid, mix a bit and serve :]
Notes
You can also make this recipe using beef or tofu.
Stir fries are flexible recipes by nature—feel free to add more vegetables along with the broccoli if you’d like, such as mushrooms or bell pepper. I like to add a little bit of fresh grated ginger to the pot for an easy additional burst of flavor!
If you like things a bit spicier, try adding some red pepper flakes. It will give you some heat that compliments the dish nicely. Or for a sweeter version, you can add up to 1 tablespoon of honey.
Using sesame oil instead of olive oil adds a flavor that complements this chicken dish nicely! For added sesame flavor, try garnishing the final dish with toasted sesame seeds.