Date Glazed Pulled Pork

Name: Date Glazed Pulled Pork
Ingredients: for the roast; 6-8 pounds fresh pork picnic shoulder with bone and skin; 6 ounces pitted Medjool dates; 2 tablespoons Dijon mustard; 1/4 cup cider vinegar; 1 teaspoon Marmite (optional); 3 bay leaves; 4 tablespoons vegetable oil; salt and freshly grated pepper; for the brine; 8 cups water; 1/4 cup Kosher salt; 2 tablespoons brown sugar; 2 heads of garlic; 1 tablespoon fennel seeds; 1 teaspoon black peppercorns, slightly crushed; 1 teaspoon coriander, slightly crushed; 2 teaspoons juniper berries