Tangy Barbecue Sandwiches

Ingredients

3 cups celery
1 cup onion
1 cup ketchup
1 cup barbecue sauce
1 cup water
2 tablespoons vinegar
2 tablespoons worcestershire sauce
2 tablespoons brown sugar
1 teaspoon chili powder
1 teaspoon salt
1/2 teaspoon pepper
1/2 teaspoon garlic powder
1 chuck roast
18 hamburger buns split

Instructions

In a slow cooker, combine the first 12 ingredients; mix well. Add roast. Cover and cook on high for 6-7 hours or until tender. Remove roast; cool. Shred meat and return to sauce; heat through. Use a slotted spoon to serve