1 c. mayonnaise or Miracle Whip
2 tbsp. vinegar
1 tbsp. prepared mustard
1 tsp. sugar
1 tsp. salt
1/4 tsp. pepper
8 oz. elbow macaroni, cooked, drained
1 c. diced celery
1 c. chopped green or red sweet pepper
1/4 c. chopped onion

In large bowl stir first 6 ingredients until smooth. Add remaining ingredients. Toss to coat well. Cover and chill.