This Instant Pot take on the classic Cuban lechon asado means you get all the flavors of tender shredded pork shoulder in a fraction of the time. The mojo marinade, loaded with garlic and onion, is typically made with sour oranges, but a combination of oranges and limes delivers that same tang. I promise you: The mojo is so good you could drink it! If you love it as much as I do, you can even make extra to serve on the side.
For the mojo: Combine the orange juice, lime juice, onion, garlic, olive oil, oregano, cumin, 3 teaspoons kosher salt and a few grinds pepper in a blender. Blend until smooth and the mojo is emulsified. Set aside.
For the pork: Pierce some small slashes in the pork with a sharp paring knife to allow the mojo marinade to penetrate. Place the pork in a large bowl. Add the mojo, cover and let marinate in the refrigerator for 2 to 8 hours.
When ready to cook, remove the pork from the bowl and dab off the excess marinade. Reserve the marinade in the bowl for cooking.
Set a 6- to 8-quart Instant Pot® to saute and add the canola oil (see Cook's Note). Cook each piece of pork until golden brown, about 5 minutes per side. Depending on the size of your pork and Instant Pot, you may need to do this in batches. Combine all the pork with the reserved marinade in the pot. Follow the manufacturer's guide for locking the lid and preparing to cook. Set to pressure cook on high for 1 hour. (It will take 8 to 10 minutes to come up to pressure.)
After the pressure-cook cycle is complete, follow the manufacturer's guide for natural release. After 20 minutes, being careful to release any remaining steam, unlock and remove the lid.
Remove the pork to a medium bowl. Strain the liquid from the Instant Pot through a fine-mesh sieve, then remove and discard the grease and solids. Return the liquid to the pot, set to saute and simmer until the sauce is reduced by half, about 15 minutes.
Meanwhile, shred the pork with 2 forks. Once the sauce is reduced, toss with the shredded pork and serve.
Settings may vary on your Instant Pot® depending on the model. Please refer to the manufacturer's guide.