1/2 c. vinegar
6 tbsp. sugar
1 tsp. dry mustard
1 tsp. paprika
1 tbsp. Worcestershire sauce
1 tsp. salt
1/4 tsp. pepper
1 tsp. celery seed
1/8 tsp. garlic powder

Mix above ingredients in a blender. With blender still running slowly, add 1 cup of salad oil.