Bbq Pork Shoulder - cooking recipe

Ingredients

1 (6 -8 lb) bone in pork shoulder
Rub
1/4 cup brown sugar
1/4 cup paprika
3 tablespoons pepper
3 tablespoons kosher salt
1 tablespoon garlic powder
1 tablespoon onion powder
1 tablespoon celery seed
1 teaspoon cayenne pepper
1 teaspoon ginger
1 teaspoon turmeric
Basting Sauce
1 1/2 cups cider vinegar
1 small onion, minced
1 teaspoon red pepper flakes
1 tablespoon kosher salt
1/4 cup brown sugar
1 teaspoon pepper
The Sauce
3 cups cider vinegar
3 tablespoons molasses
2 tablespoons dark corn syrup
1 cup chili sauce
1/3 cup brown sugar
2 teaspoons kosher salt
2 tablespoons hot sauce
2 tablespoons Worcestershire sauce
2 teaspoons red pepper flakes
1 teaspoon pepper

Preparation

Combine dry rub ingredients and rub all over pork shoulder. Cover and refrigerate for 24 hours.
Combine ingredients for basting sauce and mix thoroughtly; cover and refrigerate overnight to blend flavors.
Preheat oven to 250. Place pork shoulder in roaster pan with a rack underneath. Brush some of the basting sauce over pork. Cook for 8-9 hours or until pork falls apart, basting every hour.
Meanwhile, combine barbeque sauce ingredients in saucepan and bring to a boil. Reduce heat and simmer uncovered for 30 minutes. Serve with pork.
It would be great served on buns with the sauce.