Pat the pork loin dry with paper towels and then sprinkle the seasoning mix evenly over all sides of the meat, pressing gently to help it adhere to the meat.
Press the sauté setting button on your Instant Pot. Wait for the display to read "Hot" then add 2 tablespoons of olive oil to the pot. Using tongs, place the pork loin in the pot and brown each side for 2-3 minutes, turning it over with tongs, until all sides are golden brown.
Remove the browned pork loin and set it aside on a plate. Pour 1 cup of chicken broth into the Instant Pot and then use a wooden spoon to scrape the bottom of the pot, loosening any brown bits (this is called deglazing and it adds flavor to the broth).
Return the pork loin to the Instant Pot, placing it in the broth. Close the lid and make sure the valve is set to "Sealing." Press the "Cancel" button to stop the Sauté function, then press "Manual" or "Pressure Cook" (depending on your model) and set the time to 15 minutes at high pressure.
When the cooking time is over, let the Instant Pot do a natural pressure release for 10 minutes. Do not touch the pot during this time.
After 10 minutes, carefully turn the valve to "Venting" to release any remaining pressure. Wait until the float valve drops before opening the lid.
Remove the pork loin and then let it rest for 5 minutes before slicing on a cutting board and serving.
Notes
For food safety, use an instant-read thermometer or meat thermometer to ensure that the internal temperature reaches 145 degrees F (63 degrees C).
This nutrition information is based on the exact products I used in this recipe. Brands and sizes of products could alter exact nutrition and should always be calculated independently.