Add these ingredients in this order to the instant pot - broth, cream, garlic, salt, pepper. Don't stir it, but make sure all noodles are covered in the liquid.
Seal and set the Instant Pot to manual for 6 minutes, Once done, allow it to naturally release for 6 minutes then do a quick release.
Remove the lid and let sit for 2 minutes, then gradually stir in the parmesan cheese. Serves 6.