posted by BarbCA 02-10-100 5:28 PM 
 
Ruth’s Poppy Seed Dressing
1 cup  sugar 
2 tsp. dry mustard 
2 tsp. salt 
2/3 cup vinegar 
1/4 medium onion 
2 cups salad oil 
3 Tbs. Poppy seed 
Blend first 5 ingredients in blender. Slowly blend in oil. Stir in poppy seed just before serving.  
This is especially good made with raspberry vinegar.