Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
     3/4  cup           yellow mustard
     3/4  cup           red wine vinegar
     1/4  cup           sugar
   1 1/2  tablespoons   butter
   2      teaspoons     salt
     1/2  teaspoon      Worcestershire sauce
   1 1/4  teaspoons     ground black pepper
     1/2  teaspoon      Tabasco sauce

Preparation:

In a medium saucepan, combine ingredients, stirring to blend. Over low heat, simmer 30 minutes. Let stand at room temperature 1 hour before using.