Blend all the spices for the spice mixture (or herb mixture) in a small bowl. Lay the pork tenderloin on a large cutting board and pat dry with a paper towel. Coat liberally with the seasoning all over
Place the metal trivet inside the Instant Pot and add the beef broth and coconut aminos. Then place the seasoned pork tenderloin on the metal trivet and place the lid on
Seal the steam valve and hit the 'manual' or 'pressure' button. Cook on high for 9 minutes. Let sit for 6 minutes, then do a quick release. Let the pork rest on a clean cutting board
Remove the metal trivet, leaving the liquid in the bottom. Turn to 'saute'. Mix the tapioca flour with a little water and mix into the liquid. Mix with a whisk and let it come to a boil, once it begins to thicken, turn the Instant Pot off. Add in the pepper and ghee or butter and stir.
Slice the pork and pour the pan sauce over top and enjoy!
Two flavor options - use either the spice mixture or herb mixture *Can use 1/2 cup of beef broth (or chicken broth) if you don't have coconut aminos in addition to the broth called for *Can use cornstarch in place of tapioca if not doing a Whole30