Herbed Onion Salad Dressing

Herbed Onion Salad Dressing
 * 1/2 Cup cider vinegar
 * 1-1/2 Cups sugar
 * 1 Large Onion, Cut Into Wedges
 * 2 Teaspoons salt
 * 1 Teaspoon celery seed
 * 1 Teaspoon Ground mustard
 * 1/4 Teaspoon Each Dried basil, marjoram, oregano And thyme
 * 1/4 Teaspoon Dried rosemary, Crushed
 * 1/4 Teaspoon pepper
 * 2 Cups vegetable oil

In a Blender, Combine The vinegar, sugar And Onion; Cover And ProcessUntil Smooth. Add The Seasonings; Cover And Blend Well. WhileProcessing, Gradually Add oil in a Steady Stream Until Dressing isThickened. Store in The Refrigerator.