Creating these delightful Macaroni Salad Cups is simple if you follow these easy steps:

1. Cook Macaroni: In a large pot of salted boiling water, cook the elbow macaroni according to package instructions until al dente. Drain and rinse with cold water to cool.
2. Prepare Dressing: In a bowl, whisk together the mayonnaise, Dijon mustard, apple cider vinegar, sugar, salt, and black pepper until smooth and well combined.
3. Combine Ingredients: In a large mixing bowl, combine the cooled macaroni, diced celery, bell peppers, red onion, peas, and ham or chicken (if using).
4. Add Dressing: Pour the dressing over the macaroni mixture. Gently fold everything together until well coated.
5. Chill: Cover the mixture and refrigerate for at least 30 minutes. This allows the flavors to meld and the salad to chill.
6. Assemble Cups: Once chilled, take mini cups or serving bowls and fill each with the macaroni salad mixture. Make sure to pack it slightly for a neat presentation.
7. Garnish: Top each cup with a sprinkle of fresh parsley for a pop of color and flavor.
8. Serve: Arrange the cups on a platter and serve immediately or keep chilled until ready to serve.

These simple steps will guide you in creating perfect Macaroni Salad Cups that are sure to impress!