Pork Bar-B-Que Sandwich Courtesy Of: Sysco Corporation Pork Bar-B-Que Sandwich 24 1/4 cup Cornstarch 2 qt. Sysco Classic vinegar 1/2 cup Brown sugar 1/3 cup Sysco Imperial/McCormick salt 1-1/2 tbsp. each Sysco Imperial/McCormick paprika, chili powder and crushed red pepper 1 tbsp. each Sysco Imperial McCormick , cayenne pepper and ground black pepper 12 lb. Sysco Classic pork shoulder roast, bone-in 24 Hamburger buns 1. Combine cornstarch and 1 quart vinegar in saucepan, blending smooth. Cook and stir over medium heat until mixture thickens and boils, then cook 1 minute longer.
2. Remove from heat; whisk in remaining 1 quart vinegar. Stir in brown sugar, salt, paprika, chili powder, red and black peppers. Set barbecue sauce aside at least 4 hours.
3. Slow-cook pork roast, basting with barbecue sauce over low coals in covered grill until meat is very tender. Pull meat from bones and shred. Toss warm meat with remaining sauce. Serve 4 ounces meat in each hamburger bun.