3/4 c watercress 3/4 c nonfat yogurt 3/4 c mayonnaise 1 tb lemon juice 1/2 ts tarragon leaves 1 garlic clove 2 ts fish sauce
Instructions
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.