Step 1: Cook the Macaroni: Bring a large pot of salted water to a boil. Add the macaroni and cook according to package directions until al dente, about 8-10 minutes. Drain the macaroni and rinse it under cold water to stop the cooking process. This prevents sticking and helps cool it down quickly.
Step 2: Prepare the Dressing: In a large bowl, whisk together Hellmann's mayonnaise, yellow mustard, sweet pickle relish, white vinegar, granulated sugar, salt, and black pepper until well combined. This creamy, tangy dressing forms the base of the salad, so ensure all ingredients are well incorporated.
Step 3: Combine Ingredients: Add the cooked and cooled macaroni, chopped celery, and chopped red onion to the bowl with the dressing. Gently fold all the ingredients together until the macaroni is evenly coated with the dressing. Be careful not to overmix, as this can cause the macaroni to become mushy.
Step 4: Chill and Serve: Cover the bowl with plastic wrap and refrigerate for at least 2 hours, or preferably overnight, to allow the flavors to meld. Before serving, give the salad a gentle stir. Taste and adjust seasonings if necessary. The chilling time helps the flavors to deepen and the salad to achieve its optimal texture.
Optional Tips: For a creamier salad, add an extra 1/4 cup of Hellmann's mayonnaise. For a tangier flavor, increase the amount of white vinegar or mustard. Chopped hard-boiled eggs, bell peppers, or ham can be added for variations.