This is the BEST Old Fashioned Tuna Macaroni Salad made just how you want it. Hard-boiled eggs optional.
In a large bowl, mix together the cooked macaroni, diced vegetables, red and green onions, set aside. In a smaller bowl, mix the mayonnaise, pickle relish, vinegar, dry mustard powder, salt, pepper and pinch of cayenne. Toss the dressing with the macaroni mixture.
Fold in tuna, cheese, peas and diced hard-boiled eggs. Refrigerate and garnish with the additional eggs, parsley, cilantro or sliced green onion before serving.
When making macaroni salad, it may become stiffer and the macaroni may absorb too much of the dressing after it is refrigerated. To restore, add water in small increments, a tablespoon or two at a time until salad is creamy and desired consistency. Then garnish and serve.