MMMMM----- Recipe via Meal-Master (tm) v8.02
  Categories: Sauce
       Yield: 1 servings
     3/4 c  Watercress,packed,chopped
     3/4 c  Unflavored nonfat yogurt
     3/4 c  Mayonnaise
       1 tb Lemon juice
     1/2 ts Dried tarragon leaves
       1    Garlic clove
       2 ts Fish sauce or anchovy paste
   In a blender or food processor, combine watercress, yogurt,
   mayonnaise, lemon juice, tarragon, and garlic; whirl until smooth.
   Add fish sauce to taste; whirl to blend. (If sauce is made ahead,
   cover and chill up to a day.) Makes about 1 1/2 cups.