Onion Salad Dressing - cooking recipe

Ingredients

1/2 c. finely chopped onions
1/4 c. cider vinegar
1/4 c. sugar
1/2 tsp. salt
1/2 tsp. dry mustard
1/4 tsp. celery seed
1/2 c. oil

Preparation

Combine all ingredients (except oil) in blender and mix well. As blender is running, gradually pour in oil.
Blend until dressing is creamy.
Refrigerate.
Shake well before using.