Potato Salad
["12 potatoes, cooked and grated", "12 eggs, hard-boiled and chopped", "2 c. celery, diced", "1 onion", "1 1/2 c. sugar", "2 1/2 to 3 c. mayonnaise", "1/2 c. milk", "1 Tbsp. mustard", "4 tsp. salt", "1 large carrot, grated", "1/4 c. vinegar"]
["Put onion and vinegar in blender until fine.", "Mix all together.", "Sprinkle with parsley to serve."]
["potatoes", "eggs", "celery", "onion", "sugar", "mayonnaise", "milk", "mustard", "salt", "carrot", "vinegar"]