Rub the dry rub all over the pork, wrap in plastic wrap ... cut each sandwich in half. Serve at once. Recipe from Wine Bites by Barbara Scott-Goodman/Chronicle Books, 2011.
For the pork, in a small bowl, mix the salt and sugar until combined. One to three days before you plan to grill, generously sprinkle the salt-sugar rub over the entire pork shoulder, covering ...
However long you plan to roast your pork shoulder for, a generous rub of sea salt into the scored skin and a blast of 30 minutes in a hot oven (220C/425F/Gas 7) should ensure a crisp crackling.