Classic Macaroni Salad
["1 c. mayonnaise", "2 Tbsp. vinegar", "1 Tbsp. prepared mustard", "1 tsp. sugar", "1 tsp. salt", "1/4 tsp. black pepper", "8 oz. elbow macaroni, cooked and drained", "1 c. chopped celery", "1 c. green peppers, chopped", "1/4 c. chopped onion"]
["Combine first six ingredients.", "Mix with remaining ingredients.", "Cover and chill."]
["mayonnaise", "vinegar", "mustard", "sugar", "salt", "black pepper", "elbow macaroni", "celery", "green peppers", "onion"]