Lay chicken breasts in a single layer and sprinkle with garlic powder, salt and pepper. Toss to coat evenly with tongs or hands.
Close the lid and set pressure vent to Sealing. Press Pressure Cook on High or Manual for 10 minutes - breasts under 2" thickness or 15 minutes - breasts over 2" thick.
After, wait 5 minutes and do Quick Release by turning sealing valve to Venting position.
Open the lid and your chicken breasts are ready for meal prep, casseroles, salads etc. Shred or cube, and save broth at the bottom for soup.
Video
Notes
Store: Refrigerate in an airtight container for up to 5 days.
Freeze: Fully cook, cool completely and freeze in an airtight container or resealable freezer bags for up to 3 months. Thaw in a fridge or on a counter.