Tangy Barbecue Sandwiches

Ingredients

300 gr celery
120 gr onion
240 ml ketchup
240 ml barbecue sauce
240 ml water
30 ml vinegar
30 ml worcestershire sauce
28 gr brown sugar
3 gr chili powder
3 gr salt
1 gr pepper
2 gr garlic powder
1 chuck roast
18 hamburger buns split

Instructions

In a slow cooker, combine the first dozen 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