It's dinner time!

Ingredients

• 6 cups shredded green cabbage
• 1 ½ cups shredded carrot
• 1 cup shredded red cabbage
• ½ cup shredded onion
• ¼ cup kosher salt
• 1 cup cider vinegar
• 1 cup white sugar
• 1 tablespoon celery seed
• 1 tablespoon dry mustard
• ¼ cup vegetable oil
• ground black pepper to taste