2 cups elbow macaroni 1 sweet onion 1 green onion chopped and deseeded 2 cups mayonnaise 2 tbl vinegar 1tsp celery seed Salt and pepper to taste

Cook elbow macaroni as called for on the box.
Mix all ingredients together, pour over elbow macaroni, cover and chill for at least one hour. If macaroni is dry then repeat the sauce ingredients and chill for another hour