Set the Instant Pot to the Sauté function. Heat the olive oil and brown the chicken breasts until lightly golden, about 3 minutes per side.
Add the onion, carrots, celery, and garlic to the pot. Cook until the vegetables begin to soften, about 4-5 minutes.
Pour in the chicken broth and add the bay leaves, thyme, salt, and pepper.
Close the lid and set the valve to the sealing position. Set the Instant Pot to Pressure Cook mode and cook for 15 minutes.
When cooking is complete, allow a 10-minute natural pressure release, then carefully quick release the remaining pressure.
Remove the bay leaves and transfer the chicken to a plate or cutting board. Shred the chicken using two forks.
Set the Instant Pot to the Sauté function. Add the egg noodles and cook for 6-7 minutes until tender.
Return the shredded chicken to the pot. Garnish with fresh parsley if desired and serve hot.
Notes
Please refer to my FAQ’s (Frequently Asked Questions) and ingredient list above for other substitutions or for the answers to the most common questions.