Balsamic Honey Glazed Rainbow Carrots. Preheat oven to 400°F. In a small bowl, whisk together the olive oil, vinegar, honey sea salt, and black pepper in a bowl until fully combined. Toss the carrots and the honey mixture together in a large bowl until evenly coated. Place coated carrots in to the prepared aking dish. Roast for about 50-60 minutes until, carrots are tender (but not mushy!). Cool for 5 minutes. Top with a sprinkling of coarse salt and parsley.