2 pounds boneless pork loin roast, cut into 1-inch cubes
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1 tablespoon olive oil
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1.5 cups barbecue sauce
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1 cup water
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8 Hawaiian bread rolls (such as King's®), split
Instructions
Whisk paprika, brown sugar, garlic powder, salt, and pepper together in a large glass or ceramic bowl. Add pork and toss to evenly coat. Cover the bowl with plastic wrap and marinate in the refrigerator for 30 minutes.
Turn on a multi-functional pressure cooker (such as Instant Pot), add oil, and select the Sauté function. Cook pork in batches until browned, 5 to 7 minutes.
Return all pork to the pot; pour in barbecue sauce and water. Close and lock the lid; select the Manual function and set the timer for 60 minutes. Allow 10 to 15 minutes for pressure to build.
Release pressure using the natural-release method according to the manufacturer's instructions, 10 to 40 minutes. Unlock and remove the lid; transfer pork to a separate plate.
Select the Sauté function again; simmer sauce until thickened, about 10 minutes.
While the sauce is simmering, shred pork with 2 two forks.
Add pork back to the pot and mix to combine. Serve pork and sauce on rolls.