Thaw chicken breasts if necessary
Combine soy sauce, Hoisin sauce, sesame oil, rice vinegar, brown sugar, peanut butter, red pepper flakes, and chicken broth into a small mixing bowl
mince garlic or press with a garlic press and add to mixing bowl
mince ginger and add to mixing bowl, stir
Dice green onions. Set aside about a tablespoon of the onion for topping.
Cut carrots into match stick sized pieces
Add chicken, onions and carrots to the Instant Pot Add ingredients of mixing bowl to Instant Pot, stir contents of the Instant Pot
Put the lid on the Instant Pot, and turn on Pressure cook for 7 minutes
When the timer goes off do a quick release and remove lid
Add in rice noodles, replace the lid and leave for 12 minutes on keep warm. Check if the noodles are tender. If the noodles are still not tender then give it more time.
Served topped with cilantro (if desired), green onions and chopped peanuts. We usually let each person top with onions and peanuts as they desire.