Preheat oven to 300˚F.

Cut pork into approximately 2 ½ to 3-inch cubes, trimming off any large portions of fat. You won't be able to trim it all off and some fat is important for the flavor. If you have a bone-in roast just cut the meat from around the bone as much as possible.

Combine remaining ingredients in a large dutch oven or heavy-bottomed pot with a lid. Stir well, then add pork and stir again. Bring to a boil on the stove top, then cover and place in preheated oven. Bake for 3 ½-4 hours or until meat is very tender.

Drain meat, reserving liquid. Set meat aside to cool slightly.

Pour drained liquid through a fine-mesh sieve into a medium size pot. Add tomato paste and bring to a boil over medium high heat. Cook until thick and syrupy and reduced to about 11/4 cups.

With two forks, shred each piece of pork into 2 or 3 pieces. Place shredded meat into a large oven-safe dish. Add enough of the reduced liquid to moisten meat. Gently stir to coat the pork.

Rewarm, if needed, in the oven (or microwave on power level 5). Serve pork on it's own, with rice and beans or in tacos, carnitas, enchiladas, burritos,. etc.