1 c. cooking oil
1 tsp. salt
1 c. sugar
1 tsp. dry mustard
1 tsp. celery seed
1/2 c. vinegar
1 sm. onion, chopped fine

Combine oil, salt, sugar, dry mustard and onion. Blend on low for 10- 15 minutes. Slowly add vinegar and beat. Fold in celery seed. This keeps well.