Spinach Salad With Poppy Seed Dressing
["3/4 c. sugar", "1/3 c. white vinegar", "1 c. vegetable oil", "1 tsp. dry mustard", "1 tsp. finely chopped scallions", "2 Tbsp. poppy seed", "1 lb. fresh spinach, stems removed and cut into bite size pieces", "1/2 lb. mushrooms"]
["Combine first six ingredients in tight-fitting jar.", "Shake to blend.", "Refrigerate.", "Makes 1 1/2 cups dressing."]
["sugar", "white vinegar", "vegetable oil", "dry mustard", "scallions", "poppy seed", "fresh spinach", "mushrooms"]