Creamy Cole Slaw

INGREDIENTS

• 2 teaspoons celery salt
• 1 head green cabbage, finely shredded
• 2 tablespoons white vinegar
• 3/4 cup best-quality mayonnaise
• 2 tablespoons sour cream
• 2 tablespoons grated Spanish onion
• Salt and freshly ground pepper
• 2 tablespoons sugar, or to taste
• 2 large carrots, finely shredded
• 1 tablespoon dry mustard