Kevin's sister Dianna replied: I call this " Mae Dailey's Apple Salad Dressing" It has been printed in at least two cook books published here in Mercer County. 3/4 cup water 1 Tbsp vinegar, put on to heat. Mix one egg, beaten with 1/2 cup sugar 1 T. cornstarch. add to the water and cook and stir till thickened. Then we used apples , celery, grapes and nuts as desired.