Generously season pork with the salt and pepper on all sides. Turn on your Instant Pot to the saute mode and add canola oil. While searning, blend remaining ingredients in blender. Once meat seared, pour blender mixture. Cook under high pressure for 45 minutes.
Sear the pork on all four sides (about 2 minutes per side) until slightly browned.
While the meat is searing, combine the remaining ingredients - hatch chile, vinegar, onion, garlic, and cilantro, into the blender. Blend until smooth.
Once the meat has finished searing, pour hatch chile blend over the meat, being sure to coat it evenly.
Close the Instant Pot and set to high pressure for 45 minutes. Can use manual release or natural release when done.
Shred with fork and toss back into the sauce. Serve with your favorite buns!
