Puerto Rican Roast Pork Shoulder - cooking recipe

Ingredients

12 garlic cloves, peeled (or one head)
1 1/2 tablespoons kosher salt
1 tablespoon black peppercorns
2 tablespoons dried oregano (or 3 tablespoons fresh)
2 tablespoons olive oil
2 tablespoons white wine vinegar
8 1/2 lbs pork shoulder, skin on bone in

Preparation

Using a mortar and pestle, pound the garlic and the salt to form a paste.
Add the pepper and oregano and pound well to incorporate; stir in the olive oil and vinegar, this called a wet adobo which will keep in the refrigerator for 5 or 6 days.
Place the roast skin side up and make several slits, about 1 1/2 inches long and as deep as possible; spoon some wet adobo into the slit.
Turn roast and do the same with the other sides, then rub the adobo all over.
Refrigerate, covered for at least one day, up to 3.
Turn once a day.
Preheat oven to 450 degrees F.
Roast, skin side up, on a rack in a roasting pan for 1 hour; reduce heat to 400 degrees F and roast until the skin is deep golden and crackly (160 degrees on an internal meat thermometer), about 3 hours.
Let rest at least 15 minutes before carving.
Remove the crispy skin and cut into smaller pieces (you can use kitchen shears).
Carve the meat, parallel to the bone, all the way through to the bone.