barbecued beef chili Recipe

- 1 tablespoon garlic powder

- 2 teaspoons celery seed

- 1 teaspoon coarsely ground black pepper

- 1/4 teaspoon cayenne pepper

- 3 pounds fresh beef brisket (NOT corned)

- 1 onion, chopped (small)

- 1 bottle chili sauce (12 ounce bottle)

- 1 cup ketchup

- 1/2 cup barbecue sauce

- 1/3 cup packed brown sugar

- 1/4 cup cider vinegar

- 1/4 cup Worcestershire sauce

- 1 teaspoon ground mustard

- 1 can hot chili beans (15 1/2 ounce can)

- 1 can Great Northern beans, rinsed and drained (15 1/2 ounce can)