Pulled Pork BBQ Pierogies - Mrs. T's Pierogies

Ingredients

• 2 boxes Loaded Baked Potato or your favorite variety of Mrs. T's® Pierogies
• 1 tablespoon butter
• Pickled red onions (optional)
• 2 large sweet onions, halved and sliced
• 1 (4 pound) pork shoulder
• 1 cup cider vinegar
• ⅓ cup Worcestershire sauce
• 2 teaspoons hot sauce
• 2 teaspoons sugar
• ½ teaspoon garlic powder
• 2 tablespoons brown sugar
• 1 tablespoon paprika
• 1 tablespoon liquid smoke
• 2 teaspoons salt
• ½ teaspoon pepper