In basin of instant pot add in your brown sugar, cider vinegar, lemon-lime soda, garlic, soy sauce, hot sauce, honey, salt and pepper and stir together.
Place chicken breasts on top of sauce mixture and seal your instant pot.
Press manual setting for 15 minutes.
Quick release the pressure.
Remove chicken breasts and shred.
Turn instant pot on saute mode.
Mix together your cornstarch and cold water and pour into your sauce and stir together until thickened.
Add your chicken back into pot and stir to coat.
Serve over rice sprinkled with parsley and red pepper flakes if desired.