Ingredients

1/2 cup cider vinegar1-1/2 cups sugar1 large onion, cut into wedges2 teaspoons salt1 teaspoon celery seed1 teaspoon ground mustard1/4 teaspoon each dried basil, marjoram, oregano and thyme1/4 teaspoon dried rosemary, crushed1/4 teaspoon pepper2 cups vegetable oil

Preparation

In a blender, combine the vinegar, sugar and onion; cover and process until smooth. Add the seasonings; cover and blend well. While processing, gradually add oil in a steady stream until dressing is thickened. Store in the refrigerator.