Incredible Salad Dressing - cooking recipe

Ingredients

1 cup vegetable oil
1/3 cup sugar
1/3 cup vinegar
1 small onion, quartered
1 tablespoon prepared mustard
1 teaspoon celery salt
1/2 teaspoon salt
1/2 teaspoon pepper

Preparation

Combine all ingredients in a blender.
Cover and process until blended.
Refrigerate any leftovers.