Coleslaw Dressing
["1 c. salad oil", "2 tsp. salt", "2 tsp. dry mustard", "1 medium onion, quartered", "1 c. sugar", "1/4 tsp. pepper", "1 tsp. celery seed"]
["Blend all ingredients a few minutes until mixture thickens a little.", "Add 1/2 cup vinegar.", "Yields 1 pint."]
["salad oil", "salt", "dry mustard", "onion", "sugar", "pepper", "celery"]