Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      tablespoon    garlic salt
   1      tablespoon    pepper
   1      teaspoon      onion salt
     1/2  cup           vinegar
     1/3  cup           catsup
     1/2  cup           Worcestershire sauce

Preparation:

Marinade brisket (app. 10 lbs.) in sauce for 12 hours prior to cooking.