Onion-Poppy Seed Dressing

1/3 cup cider vinegar

1/2 cup sugar

1/2 large sweet onion (cut into wedges)

1 tsp ground mustard

1 cup vegetable oil

1 tsp poppy seeds

In blender, combine the vinegar, sugar, onion and mustard. Cover and process until blended.

While processing, gradually add oil in a steady stream.

Stir in poppy seeds.

Refrigerate until serving.