Mix all the spices listed one day before cooking the meat, cut the roast into appropriate pieces and rub the spices and onion on it, wrap it in butcher’s paper and put in refrigerator for overnight.
Put the roast in an instant pot and cook until it is brown from all sides, add 2 cups water into it.
Lock the lid and cook at manual “high” pressure for 50-60 minutes, release the pressure naturally.
Take out the meat and shred it.
Cook the liquid in the pot until it remains half then strain it.
In a pan put some vegetable oil and fry the pork until it is brown.
Drizzle some liquid before serving, put carrots in lettuce cups on serving platter and fill with pork, squeeze fresh lime over it.