Add all ingredients, except garnishes, to the Instant Pot and stir.
Close the lid, make sure the pressure valve is set to seal, then set it to manual for 15 minutes.
Once it beeps to finish, open the pressure valve to let steam escape.
Open the lid, remove the chicken and shred it with 2 forks.
Add back in the chicken and stir to combine.
Add more hot sauce, if desired.
Serve with optional garnishes.