Ingredients

24 cups uncooked elbow macaroni

6 cups mayonnaise

1-1/2 cups distilled white vinegar

4 cups white sugar

3/4 cup and 3 tablespoons prepared yellow mustard

3 tablespoons salt

1 tablespoon ground black pepper

6 large onion, chopped

12 stalks celery, chopped

6 green bell pepper, seeded and chopped

1-1/2 cups grated carrot (optional)

3/4 cup chopped pimento peppers (optional)

Preparation

In a serving bowl, combine the ingredents. Pour dressing over the top; toss to coat evenly.