1/2 c. sugar
1 tsp. dry mustard
1 tsp. salt
1/4 of an onion, grated
1/3 c. vinegar
1 c. salad oil
1 tbsp. celery seed
Lemon juice

Combine dry ingredients, add onion and small amount of vinegar. Add oil gradually and remaining vinegar and celery seed. Chill.

I use my blender, add the sugar, mustard, salt and onion. (I use a medium onion.) Add vinegar and blend good. Then gradually add oil, celery seed and a little lemon juice.