3 cup shredded green cabbage 3 cup shredded red cabbage 1 small red sweet pepper, seeded and cut into thin strips (3/4 cup) 1 small yellow sweet pepper, seeded and cut into thin strips (3/4 cup) ¼ cup canola oil 3 tablespoon cider vinegar 2 tablespoon pure maple syrup 1 teaspoon celery seeds ½ teaspoon salt ¼ teaspoon freshly ground black pepper