Ingredients

1 cup mayonnaise1 small onion, cut into wedges2 tablespoons sugar2 tablespoons vinegar2 tablespoons ketchup1 teaspoon salt1/2 teaspoon celery seed1/3 cup vegetable oilSalad greens and vegetables of your choiceCrumbled blue cheese

Preparation

Place the first seven ingredients in a blender; cover and process until smooth. While processing, gradually add oil in a steady stream. In a salad bowl, combine greens and vegetables; sprinkle with blue cheese. Serve with dressing. Refrigerate any leftover dressing.