Macaroni Salad
["1 stalk celery, chopped", "1/2 small onion", "1/3 c. mayonnaise", "1 Tbsp. vinegar", "1 Tbsp. sugar", "1 tsp. prepared mustard", "3/4 tsp. salt", "pepper as desired", "3 c. cooled, drained, cooked macaroni (about 1 1/2 c. uncooked)", "1 hard-boiled egg, chopped"]
["Mix all ingredients, except macaroni and egg, in large bowl. Add macaroni and egg.", "Mix lightly.", "Chill before serving."]
["celery", "onion", "mayonnaise", "vinegar", "sugar", "mustard", "salt", "pepper", "macaroni", "egg"]