3/4 c. mayonnaise
1 tbsp. mustard
1 tsp. salt
2 tbsp. vinegar
1 tsp. sugar
1/8 tsp. pepper
8 oz. elbow macaroni, cooked & drained
1 c. diced celery
1/4 c. chopped onion
1 c. chopped green or red peppers or 1/2 c. of each

In large bowl stir together mayonnaise, vinegar, mustard, sugar, salt and pepper until smooth. Add macaroni, celery, green peppers and onion. Toss to well covered. Cover and chill.