Sprinkle brisket generously with celery salt, onion salt and garlic. Pour liquid smoke over brisket, cover and refrigerate overnight.
Copyright 1984 The Junior League of Kansas City, Missouri, Inc. All rights reserved.
Pour off all but 2 tablespoons of liquid. Sprinkle meat with salt, pepper and Worcestershire sauce. Cover and bake for 3-1/2 to 4 hours at 275 degrees.
In a medium saucepan, combine all ingredients and bring to a boil. Reduce heat and simmer until mixture thickens. Set aside.
Remove brisket from oven and top with sauce. Bake for 1 hour more. Remove from sauce and let cool for 2 hours before slicing. Slip back into a warm oven after slicing, if desired, and serve topped with warm sauce