Good-Cooking - Barbecued Beef Brisket

Ingredients

• 1 teaspoon salt
• 1 teaspoon chili powder
• 1/2 teaspoon garlic powder
• 1/4 teaspoon onion powder
• 1/4 teaspoon celery seed
• 1/4 teaspoon pepper
• 1 (2 1/2 pound) fresh beef brisket, trimmed (NOT corned beef)
• 1/2 cup ketchup
• 1/2 cup chili sauce
• 1/4 cup packed brown sugar
• 2 tablespoons cider vinegar
• 2 tablespoons Worcestershire sauce
• 1 to 1 1/2 teaspoons Liquid Smoke (optional)
• 1/2 teaspoon ground mustard