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. Drain well and rinse with cold water to stop the cooking process. This step prevents the macaroni from becoming mushy.
Step 2: Prepare the Dressing: In a large bowl, whisk together the mayonnaise, white vinegar, granulated sugar, Dijon mustard, salt, and black pepper until smooth. Ensure the sugar is fully dissolved to avoid a grainy texture.
Step 3: Combine Ingredients: Add the cooked macaroni, diced celery, diced red onion, sweet pickle relish, and diced hard-boiled eggs to the bowl with the dressing. Gently fold all ingredients together until the macaroni is evenly coated.
Step 4: Chill: Cover the bowl tightly with plastic wrap and refrigerate for at least 2 hours, or preferably overnight. This chilling period allows the flavors to meld and the salad to develop its signature taste.
Step 5: Serve: Before serving, stir the macaroni salad and adjust seasonings as needed. Add more mayonnaise for extra creaminess or a pinch of salt and pepper to taste. Serve cold and enjoy.
Optional Tips: For a tangier flavor, add an extra tablespoon of white vinegar or a squeeze of lemon juice. For a sweeter salad, increase the sugar to 1/3 cup. Substitute chopped green bell pepper for celery, if desired. A dash of paprika can add a subtle smoky note.