Spinach Salad With Sweet-Sour Dressing
["2/3 c. sugar", "1 tsp. salt", "1/2 tsp. pepper", "1 tsp. celery seed (optional)", "3 Tbsp. prepared mustard", "1/2 c. vinegar", "1/2 c. oil", "1 medium onion, chopped fine (or add sliced onions to salad)"]
["Mix in a blender or with rotary beater.", "Refrigerate.", "Keeps well.", "Just before serving, toss well with fresh spinach leaves, bacon (fried crisp and crumbled), hard-boiled eggs (chopped) and sliced fresh mushrooms."]
["sugar", "salt", "pepper", "celery", "mustard", "vinegar", "oil", "onion"]