Place all ingredients in the Instant Pot and give it a little stir to combine. Lock the lid and make sure your valve is set to sealing position.
Pressure cook on high pressure for 15 minutes, then QR (quick release)
Once the pressure is released, carefully take off the lid and remove chicken breasts. Shred chicken and then return to the pot. Serve hot with with your favorite toppings like shredded cheese, sour cream, fresh avocado, or cilantro. I had mine with just a little cheese and cilantro to keep it light!