1 c. salad oil
1 c. sugar
1/2 c. vinegar
1 med. onion, grated
1 tsp. salt
1 tsp. dry mustard
1 tsp. celery seed

Combine oil, sugar, salt, mustard and onion in blender and mix at high speed. Add vinegar slowly. Beat until smooth. Add celery seed, stir with spoon until blended.