Homestyle Barbecue Sauce

      2 tb Butter (25mL)                       2 tb Red wine vinegar (25mL)
    1/2 c  Onion; chopped (125mL)            1/4 c  Brown sugar (50mL)
    3/4 c  Ketchup (175mL)                 1 1/2 ts Dry mustard (7mL)
    1/2 c  Beef stock (125mL)              1 1/2 ts Black peppercorns; cracked
      2 tb Worcestershire Sauce (25mL)              - or black pepper (7mL)
      2 tb Lemon juice (25mL)

  In saucepan, cook onion in butter until softened. Add remaining
  ingredients; bring to boil. Reduce heat and simmer 15-20 minutes. Makes 1
  1/2 cups (375mL)