– 3 pound beef brisket – 1 tablespoon cooking oil – 1/4 cup beef broth – 3/4 cup BBQ sauce – 1/2 onion sliced – 2 tablespoons olive oil – 1 teaspoon liquid smoke – 2 teaspoons paprika – 1 teaspoon salt – 1/2 teaspoon pepper – 1/2 teaspoon chili powder – 1/2 teaspoon onion powder