Ingredients

Instructions

  1. In a blender, place the mayonnaise, ketchup, vinegar, sugar, onion, salt and pepper; cover and process until smooth.
  2. While processing, gradually add oil in a steady stream.
  3. Let chill in fridge for about an hour before serving to let onion flavor mellow.
  4. Serve over salad.
  5. Refrigerate leftover dressing.