Step 1

Cook the macaroni or pasta according to the package instructions. Drain and set aside to cool.

Step 2

In a large mixing bowl, combine the mustard, mayonnaise, sour cream, vinegar, salt, and black pepper. Mix well to combine.

Step 3

Add the cooked and cooled macaroni to the bowl with the dressing. Mix until the macaroni is well coated.

Step 4

Add the red bell pepper, chopped celery, parsley, pickles, red onion, and celery ribs to the bowl. Stir to combine.

Step 5

Gently fold in the diced hard-boiled eggs.

Step 6

Taste the salad and adjust the seasoning, adding more salt, pepper, mayonnaise, or other ingredients according to your preference.

Step 7

Cover the bowl and refrigerate for at least 1 hour to allow the flavors to meld together.

Step 8

Before serving, give the salad a final stir and adjust the seasoning if needed.

Step 9

Serve chilled and enjoy!