Potato Salad
["8 potatoes, cooked and sliced", "1 1/2 c. mayonnaise", "8 oz. sour cream", "1 Tbsp. dried onion", "1 tsp. horseradish powder", "1 tsp. celery seed", "2 Tbsp. parsley flakes", "1 tsp. salt"]
["In dish, layer potatoes.", "Layer dressing.", "Layer potatoes. Layer dressing, ending with dressing.", "Serve cold."]
["potatoes", "mayonnaise", "sour cream", "onion", "horseradish powder", "celery", "parsley flakes", "salt"]