Classic Macaroni Salad

Ingredients

• 1 c. Hellmann's mayonnaise
• 2 Tbsp. vinegar
• 1 Tbsp. prepared mustard
• 1 tsp. sugar
• 1 tsp. salt
• 1/4 tsp. pepper
• 8 oz. elbow macaroni, cooked and drained
• 1 c. sliced celery
• 1/4 c. onion, chopped
• 1 c. green or red pepper, chopped