Emeril Lagasse's Coleslaw

INGREDIENTS

• 3/4 cup mayonnaise
• 1/4 cup Dijon mustard
• 1/4 cup packed light brown sugar
• 3 tablespoons apple cider vinegar
• 2 tablespoons buttermilk
• 4 teaspoons celery seeds
• 1 teaspoon salt
• 1/4 teaspoon freshly ground black pepper
• 1/8 teaspoon cayenne
• 3 cups shredded green cabbage (, about 1/2 head cabbage)
• 3 cups shredded red cabbage (, about 1/2 head cabbage)
• 1 green bell pepper, finely diced
• 1 large carrot, peeled and shredded
• 1/2 cup grated yellow onion
• 1/4 cup minced fresh parsley