Glazed Carrots and Cipollini Onions with Coriander and Orange

If you can't find cipollini onions, substitute pearl onions. To make peeling the onions easier, drop them into boiling water and cook for one minute. Drain, rinse with cold water, and trim the ends; the peels will easily slip off. Prepare this dish up to a day in advance; reheat in a skillet over medium heat, adding one to two tablespoons water if necessary.