5 lb. macaroni
1 gal. Miracle Whip or mayonnaise
2 bunches celery, chopped
2 green peppers, minced
2 onions, minced
Celery seed, salt & pepper to taste
Add some sugar to taste

You can put tuna in this to make Tuna Macaroni Salad.

To make potato salad for 50 people you can use 15 pounds potatoes.