1/2 c. vinegar
1/4 c. water
1/4 c. sugar
1 can tomato soup
1 c. salad oil
1 tsp. salt
1 tsp. mustard
1/2 tsp. pepper
2 tsp. Worcestershire sauce

Combine all ingredients in blender, adding oil last. Chill and shake well before serving. Make 1 quart.