- Combine 4 cups water, salt, brown sugar, peppercorns, garlic, ginger and green onion in a medium stock pot. Heat until steaming, about 10 minutes. Stir to dissolve sugar.
- Remove from heat and pour mixture into a large bowl. Cool to room temperature. Stir in 4 cups cold water. Add pork chops making sure they are submerged in brine. Cover and refrigerate for at least 6 hours or up to 24 hours.
- Preheat grill to medium heat. Remove pork chops from brine and pat dry with paper towels. Leave pork chops on a plate to come to room temperature while grill heats. Brush pork chops with vegetable oil. Place pork chops on hot grill and grill for 6 minutes. Turn pork chops and baste with half cup of teriyaki baste and glaze. Cook 6-8 minutes longer or until internal temperature reaches 145ºF.
- Rest pork chops at room temperature for 5 minutes. Serve hot, topped with green onion.