Classic macaroni salad is the perfect side dish for picnics, barbeques, and summer gatherings. We’ll show you how to make a creamy macaroni salad using elbow macaroni, a generous amount of mayonnaise, some tangy Dijon, and a bit of vinegar, plus red onions, thinly sliced celery, some peppers, salt, and a little bit of sugar. Make it in advance to let the flavors blend together before unveiling it at your next barbeque!