1/4 c. grated onion 1/2 tsp. salt
1 tsp. dry mustard
1/3 c. cider vinegar
1/3 c. sugar (or may use 2 tsp. artificial sweetener)
1 c. oil

Put all ingredients in blender except oil. Blend well. Add 1 tablespoon oil and blend. Gradually add oil until dressing thickens. May be used as salad dressing, slaw dressing in deviled eggs, etc.