A depression era staple my mother whipped up for hot summer days. This cool 4 ingredient side dish is cheap, filling, and incredibly refreshing

dressing: In a large mixing bowl (big enough to hold all the pasta), whisk together the mayonnaise, 2 tablespoons of white vinegar, 1 teaspoon of kosher salt, and 1/2 teaspoon of black pepper. 

If the dressing seems very thick, whisk in 2–4 tablespoons of cold water or milk, a little at a time, until it reaches a creamy but still substantial consistency that will cling to the macaroni.

Combine pasta and celery: Add the cooled macaroni and the diced celery to