Bert's Superb Barbecue Sauce

    1/4 c  Cider Vinegar                       1    Onion; sliced
    1/2 c  Water                             1/2 ts Pepper
      2 tb Sugar                           1 1/2 tb Salt
      1 tb Prepared Mustard                  1/4 ts Cayenne Pepper
    1/4 c  Butter or Margarine               3/4 c  Heinz catsup
      1    Thick lemon Slice                   2 tb Worcestershire sauce

  In a saucepan, mix vinegar, water, sugar, mustard, butter, lemon, onion,
  and seasonings. Simmer, uncovered, 20 minutes. Add worcestershire sauce and
  catsup, bring back to a boil and its done. (Good Housekeeping CB, 1955)
  NOTE: I do not use cayenne or salt and always double this recipe. Into the
  double recipe, I add about 1/4 to 1/3 cup brown sugar. This gives the sauce
  more of a sweet and sour taste. It is just excellent on Baby Back Ribs,
  which I simmer in water with a little vinegar, garlic and just a pinch of
  salt for about 30 minutes before barbequeing. Through trial and error, I
  have found that Heinz catchup is thicker and makes a "clingier" sauce.