
Smash the garlic, adobo, pepper and oregano with a mortar and pestle, or blitz in a food processor.
Place the skin on top of the seasoned pork shoulder, and rub with 2 teaspoons of olive oil and a good pinch of salt.
Place the pork shoulder into a roasting pan, cover with aluminum foil and roast for 3-4 hours at 350F. Raise the oven temp to 400 degrees F, then uncover and cook for another 15-20 minutes to crisp the skin.
If the skin (cuerito) isn't crispy yet, remove and airfry for 15 minutes at 300F, or until it's to your desired level of crunchiness.
Freeze leftovers in a plastic freezer storage bag for up to 3 months. Reheat in the microwave as needed.