Ingredients

1. 3 tablespoons unsalted butter
2. 6 garlic cloves, minced
3. 2 carrots, finely chopped
4. 2 medium onions, finely chopped
5. 2 celery ribs, finely chopped
6. Sea salt and freshly ground pepper
7. One 5-pound untrimmed pork loin, pork shoulder or fresh ham on the bone
8. 2 teaspoons thyme leaves, plus 2 bunches of thyme sprigs
9. 1/4 cup extra-virgin olive oil
10. 2 cups chicken stock or canned low-sodium broth

Directions

1. Preheat the oven to 275°. In a large skillet, melt the butter. Add the garlic, carrots, onions and celery and season with salt and pepper. Cover and cook over low heat, stirring occasionally, until the vegetables are softened but not browned, about 10 minutes.
2. Season the pork all over with salt, pepper and the thyme leaves. In a medium enameled cast-iron casserole, heat the oil. Add the pork and sear it over moderate heat until browned on all sides. Transfer the pork to a platter and discard the fat in the casserole; wipe the casserole clean. Return the pork to the casserole, meaty side up.
3. Spoon the vegetables around the meat and add the stock and bunches of thyme sprigs. Cover with a sheet of buttered wax paper and a lid and bring to a boil on the stove. Transfer the casserole to the oven and braise the pork, basting every 30 minutes, for about 3 hours, or until the pork is very tender.
4. Remove the casserole from the oven. Carefully transfer the meat to a carving board and season it generously with salt and pepper. Cover loosely with foil and let stand for about 15 minutes. Strain the cooking juices through a fine sieve into a gravy boat. Thickly slice the pork and serve with the cooking juices.

Make Ahead

The pork can be prepared up to 1 day ahead through Step 3. Cool and refrigerate the meat in its cooking liquid. Before serving, skim off the fat and reheat gently.

Serve With

Brussels sprouts, wilted spinach and rice