Classic Macaroni Salad

Bring a large pot of lightly salted water to a boil. Add the macaroni and cook until tender about 8 minutes. Rinse under cold water and drain.

In a large bowl mix together the mayonnaise vinegar sugar mustard salt and pepper. Stir in the onion celery green pepper carrot pimentos and macaroni. Refrigerate for at least 4 hours before serving but preferably overnight.