Crock Pot Nc Pulled Pork

INGREDIENTS

• 2 onions, quartered
• 2 tablespoons brown sugar
• 1 tablespoon smoked paprika
• 2 teaspoons salt
• 1/2 teaspoon ground black pepper
• 1 (4 -6 lb) pork butt or 1 (4 -6 lb) shoulder roast
• 1 cup cider vinegar
• 1/3 cup Worcestershire sauce
• 1 1/2 teaspoons crushed red pepper flakes
• 2 teaspoons sugar
• 1/2 teaspoon dry mustard
• 1/2 teaspoon garlic salt
• 1/4 teaspoon cayenne pepper