3 tablespoons cider vinegar
3 tablespoons honey
6 tablespoons mayonnaise
1 tablespoon Dijon mustard
1 tablespoon finely minced onion
1-1/2 tablespoons chopped fresh parsley
Pinch of salt
3/4 cup vegetable oil
Heat vinegar and honey in heavy small saucepan over low heat, stirring until honey dissolves. Pour into bowl and cool. Whisk in mayonnaise, mustard, onion, parsley and salt. Gradually whisk in oil. Can be prepared 3 days ahead. Cover and refrigerate. Bring dressing to room temperature before using.
Serves best on a spinach salad.
Makes about 1-1/2 cups.