Add all the ingredients (except for the optional toppings) to the inner pot of your Pressure Cooker. Stir to combine flavors.
Move the pressure release valve to the sealed position. Press the SOUP button or HIGH pressure for 30 minutes. Quick release the pressure when finished cooking.
Remove the chicken breasts carefully and shred with two forks. Return the shredded chicken back to the soup and stir. Serve with optional toppings. Enjoy!
*SLOW COOKER OPTION- Combine all the ingredients (minus the toppings) in your slow cooker and set to LOW for 6 hours or HIGH for 3 hours. Shred chicken with fork and return to slow cooker. Serve with optional toppings.