Green Onion Salad Dressing for Cajun Potato Salad

      1    Egg + 1 egg yolk                    1 tb White vinegar
  1 1/8 c  Vegetable oil                     1/4 ts Salt
    1/2 c  Finely chopped green onions       1/8 ts White pepper
  1 1/2 tb Creole or brown ustard

  Blend the egg and egg yolk in food processor or blender until frothy, about
  2 minutes. With the machine on, gradually add the oil in a thin stream.
  When the mixture is thick and creamy, add the remaining ingredients and
  blend thoroughly. Refrigerate until ready to use.